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Daniel S Macmillan

Photo of DANIEL MACMILLAN

Daniel S Macmillan

  • PRINCIPAL SCIENTIST
  • NASA/GSFC
  • Mail Code: 61A.1
  • VIENNA , VA 221820000
  • Employer: NVI INC

    • Positions/Employment

    1993 - Present

    Principal Scientist

    NVI Inc., NASA/GSFC, Greenbelt, MD
    1989 - 1992

    Senior Scientist

    Interferometrics Inc., NASA/GSFC, Greenbelt, MD
    1984 - 1988

    Senior Scientist

    ST Systems Corporation, Lanham, MD

    Education

    Ph.D., Physics, University of Maryland, 1981

    M.S., Physics, University of Maryland, 1978

    A.B., Physics, Mathematics, Cornell University, 1974

     

    Research Interests

    VLBI Analysis

    As member of the IVS Working Group 3, he used simulations to determine the specifications for the next generation VLBI2010 antennas. He applied Monte-Carlo simulations with  realistic models of clock drifts and atmospheric turbulence to determine realistic error sources in VLBI. He was a major contributor to the development of the 2nd Realization of the International Celestial Reference Frame by Very Long Baseline Interferometry recently adopted by the International Astronomical Union. He has been responsible for improvements in VLBI tropospheric delay modeling. Additionally he has investigated many other systematic errors in VLBI measurements including extragalactic radio source apparent proper motion, atmospheric pressure loading, ocean loading, hydrology loading, antenna feed polarization leakage, and antenna thermal deformation. He demonstrated the importance of modeling the azimuthal dependence of tropospheric delay in geodetic analysis and in the determination of the terrestrial and celestial reference frames from VLBI measurements. He directs the task on improving the VLBI analysis technique. He was a principal investigator on the Jason altimeter science working team. This work consists of using GPS and VLBI tropospheric delay estimates to calibrate altimeter microwave radiometer drifts. He has analyzed effects of multipath signal scattering on GPS measurements and tested methods of mitigating the problem.

    Professional Service

    • IVS Working Group 8 Galactic aberration
    • IAG Working Group 1.4.2 Impact of geophysical and
      astronomical modeling on reference frames and their consistency
    • IVS VGOS Technical Committee (previously IVS VLBI2010 Committee)

     

     

     

    Publications

    Refereed

    MacMillan, D. S. 2022. "Comparison of EOP and scale parameters estimated from the three simultaneous CONT17 VLBI observing networks." Journal of Geodesy, 96 (4): 25 [10.1007/s00190-022-01611-2]

    Merkowitz, S. M., S. Bolotin, P. Elosegui, et al. J. Esper, J. Gipson, L. Hilliard, E. Himwich, E. D. Hoffman, D. D. Lakins, R. C. Lamb, F. G. Lemoine, J. L. Long, J. F. McGarry, D. S. MacMillan, B. P. Michael, C. Noll, E. C. Pavlis, M. R. Pearlman, C. Ruszczyk, M. D. Shappirio, and D. A. Stowers. 2019. "Modernizing and expanding the NASA Space Geodesy Network to meet future geodetic requirements." Journal of Geodesy, 93 (11): 2263-2273 [10.1007/s00190-018-1204-5]

    MacMillan, D. S., A. Fey, J. M. Gipson, et al. D. Gordon, C. S. Jacobs, H. Krásná, S. B. Lambert, Z. Malkin, O. Titov, G. Wang, and M. H. Xu. 2019. "Galactocentric acceleration in VLBI analysis." Astronomy & Astrophysics, 630: A93 [10.1051/0004-6361/201935379]

    MacMillan, D. S. 2017. "EOP and scale from continuous VLBI observing: CONT campaigns to future VGOS networks." J. Geodesy, 91 (7): 819-829 [10.1007/s00190-017-1003-4]

    Fey, A. L., D. Gordon, C. S. Jacobs, et al. C. Ma, R. A. Gaume, E. F. Arias, G. Bianco, D. A. Boboltz, S. Böckmann, S. Bolotin, P. Charlot, A. Collioud, G. Engelhardt, J. Gipson, A.-M. Gontier, R. Heinkelmann, S. Kurdubov, S. Lambert, S. Lytvyn, D. S. MacMillan, Z. Malkin, A. Nothnagel, R. Ojha, E. Skurikhina, J. Sokolova, J. Souchay, O. J. Sovers, V. Tesmer, O. Titov, G. Wang, and V. Zharov. 2015. "The Second Realization of the International Celestial Reference Frame by Very Long Baseline Interferometry." The Astronomical Journal, 150 (2): 58 [10.1088/0004-6256/150/2/58]

    Eriksson, D., D. S. MacMillan, and J. M. Gipson. 2014. "Tropospheric delay ray tracing applied in VLBI analysis." Journal of Geophysical Research: Solid Earth, 119 (12): 9156-9170 [10.1002/2014jb011552]

    Eriksson, D., and D. S. MacMillan. 2014. "Continental hydrology loading observed by VLBI measurements." Journal of Geodesy, 88 (7): 675-690 [10.1007/s00190-014-0713-0]

    Le Bail, K., J. M. Gipson, and D. S. Macmillan. 2014. "Quantifying the Correlation Between the MEI and LOD Variations by Decomposing LOD with Singular Spectrum Analysis." International Association of Geodesy Symposia, "Earth on the Edge: Science for a Sustainable Planet", Melbourne, Australia, June 28 - July 2, 2011, 139: Berlin, Germany: 473-477, ISBN: 978-3-642-37222-3. [10.1007/978-3-642-37222-3_63]

    Gordon, D., C. Ma, D. MacMillan, et al. S. Bolotin, K. Le Bail, and J. Gipson. 2013. "Effects of ICRF2 on the TRF, CRF, and EOP." International Association of Geodesy Symposia, 138 : Berlin, Germany: 175-179, ISBN: 978-3-642-32998-2. [10.1007/978-3-642-32998-2_26]

    Collilieux, X., Z. Altamimi, D. F. Argus, et al. C. Boucher, A. Dermanis, B. J. Haines, T. A. Herring, C. W. Kreemer, F. G. Lemoine, C. Ma, D. S. MacMillan, J. Mäkinen, L. Métivier, J. Ries, F. N. Teferle, and X. Wu. 2013. "External Evaluation of the Terrestrial Reference Frame: Report of the Task Force of the IAG Sub-commission 1.2." Earth on the Edge: Science for a Sustainable Planet, IAG Symposia, v. 139: 197-202 [10.1007/978-3-642-37222-3_25]

    Gordon, D., K. L. Bail, C. Ma, et al. D. MacMillan, S. Bolotin, and J. Gipson. 2013. "The Construction of ICRF2 and Its Impact on the Terrestrial Reference Frame." Earth on the Edge: Science for a Sustainable Planet, 185-188 [10.1007/978-3-642-37222-3_23]

    Ma, C., D. MacMillan, S. Bolotin, et al. K. Le Bail, D. Gordon, and J. Gipson. 2012. "Comparison of Realizations of the Terrestrial Reference Frame." International Association of Geodesy Symposia, 138 : 51-56 [10.1007/978-3-642-32998-2_9]

    Gordon, D., C. Ma, D. S. Macmillan, et al. S. Bolotin, K. Le Bail, and J. M. Gipson. 2012. "Effects of ICRF2 on the TRF, CRF, and EOP." REFERENCE FRAMES FOR APPLICATIONS IN GEOSCIENCES, International Association of Geodesy Symposia, "IAG Symposium on Reference Frames for Applications in Geosciences (REFAG)", Marne-la-Vallée, France, Oct: 4-8, 2010, 138: Berlin, Germany: 175-179, ISBN: 978-3-642-32998-2. [ 10.1007/978-3-642-32998-2_26]

    Heinkelmann, R., J. Böhm, S. Bolotin, et al. G. Engelhardt, R. Haas, R. Lanotte, D. S. MacMillan, M. Negusini, E. Skurikhina, O. Titov, and H. Schuh. 2011. "VLBI-derived troposphere parameters during CONT08." Journal of Geodesy, 85 (7): 377-393 [10.1007/s00190-011-0459-x]

    Gipson, J. M., D. Behrend, D. Gordon, et al. W. E. Himwich, D. S. Macmillan, M. Titus, and B. Corey. 2010. "Coordinating, Scheduling, Processing and Analyzing IYA09." International VLBI Service for Geodesy and Astrometry, 2010 General Meeting Proceedings NASA CP/2010-215864: Greenbelt, Maryland, U.S.A.:, NASA CP/2010-215864: Greenbelt, Maryland, U.S.A.: 90-94 [Full Text (Link)]

    Petrov, L., D. Gordon, J. Gipson, et al. D. MacMillan, C. Ma, E. Fomalont, R. Walker, and C. C. Carabajal. 2009. "Precise geodesy with the Very Long Baseline Array." Journal of Geodesy, 83 (9): 859-876 [10.1007/s00190-009-0304-7]

    Kierulf, H., B. Pettersen, D. S. Macmillan, and P. Willis. 2009. "The kinematics of Ny-Alesund from space geodetic data." Journal of Geodynamics , 48 (1): 37-46.

    Heinkelmann, R., J. Boehm, H. Schuh, et al. S. Bolotin, G. Engelhardt, D. S. MacMillan, M. Negusini, E. Skurikhina, V. Tesmer, and O. Titov. 2007. "Combination of long time-series of troposphere zenith delays observed by VLBI." Journal of Geodesy, 81 (6-8): 483-501 [10.1007/s00190-007-0147-z]

    MacMillan, D. S., and C. Ma. 2007. "Radio source instability in VLBI analysis." J Geodesy, vol 81 ( 6-8): 443-453 [ 10.1007/s00190-007-0136-2]

    Fey, A., C. Ma, E. Arias, et al. P. Charlot, M. Feissel-Vernier, A. M. Gontier, C. Jacobs, J. Li, and D. MacMillan. 2004. "The Second Extension of the International Celestial Reference Frame: ICRF-EXT.1." The Astronomical Journal, 127 (6): 3587-3608 [10.1086/420998]

    Macmillan, D. S., P. Fang, and B. D. Beckley. 2004. "Monitoring the TOPEX and Jason-1 Microwave Radiometers with GPS and VLBI Wet Zenith Path Delays." Marine Geodesy, 27 (3-4): 703-716 [10.1080/01490410490904780]

    Fomalont, E. B., L. Petrov, D. MacMillan, D. Gordon, and C. Ma. 2003. "The Second VLBA Calibrator Survey: VCS2." The Astrophysical Journal, 126 (5): 2562-2566 [10.1086/378712]

    Beasley, A., D. Gordon, A. Peck, et al. L. Petrov, D. MacMillan, E. Fomalont, and C. Ma. 2002. "The VLBA Calibrator Survey—VCS1." Astrophysical Journal, Supplement Series, 141 (1): 13-21 [10.1086/339806]

    Ma, C., and D. S. MacMillan. 2000. "VLBI observations of Earth orientation, Proc IAU Colloquium 178." Polar Motion: Historical and Scientific Problems S Dick and D McCarthy eds, 251-260:

    MacMillan, D., W. Himwich, N. Vandenberg, et al. C. Thomas, J. Bosworth, B. Chao, T. Clark, and C. Ma. 1999. "CORE: Continuous, high-accuracy Earth orientation measurements." Proc 13th Working Meeting on European VLBI for Geodesy and Astrometry, 166-171:

    Ma, C., and D. S. MacMillan. 1999. "Three-dimensional VLBI velocities in a global reference frame." GPS99,

    MacMillan, D., and C. Ma. 1999. "VLBI measurements of Caribbean and South American motion." Geophys Res Lett, 26: 919-922 [ 10.1029/1999GL900139]

    MacMillan, D., and C. Ma. 1998. "Using meteorological data assimilation models in computing tropospheric delays at microwave frequencies." Phys Chem Earth, 23: 97-102 [ 10.1016/S1464-1895(01)00069-2]

    Clark, T., C. Ma, J. Ryan, et al. B. Chao, J. Gipson, D. MacMillan, N. Vandenberg, T. Eubanks, and A. Niell. 1998. "Earth rotation yields valuable information about the dynamics of the Earth system." EOS Trans Am Geophys Union, 79: 205-206 [ 10.1029/98EO00149]

    Macmillan, D. S., and S. Ma. 1997. "Atmospheric gradients and the VLBI terrestrial and celestial reference frames." Geophysical Research Letters, 24 (4): 453-456 [10.1029/97GL00143]

    Macmillan, D., and C. Ma. 1994. "Evaluation of very long baseline interferometry atmospheric modeling improvements." Journal of Geophysical Research, 99 ( B1): 637-651 [ 10.1029/93JB02162]

    Rogers, A. E., R. J. Cappallo, B. E. Corey, et al. H. F. Hinteregger, A. E. Niell, R. B. Phillips, D. L. Smythe, A. R. Whitney, T. A. Herring, J. M. Bosworth, T. A. Clark, C. Ma, J. W. Ryan, J. L. Davis, I. I. Shapiro, G. Elgered, K. Jaldehag, J. M. Johansson, B. O. Rönnäng, W. E. Carter, J. R. Ray, D. S. Robertson, T. M. Eubanks, K. A. Kingham, R. C. Walker, W. E. Himwich, C. E. Kuehn, D. S. Macmillan, R. I. Potash, D. B. Shaffer, N. R. Vandenberg, J. C. Webber, R. L. Allshouse, B. R. Schupler, and D. Gordon. 1993. "Improvements in the accuracy of geodetic VLBI." Geodynamics Series, 47-63 [10.1029/gd025p0047]

    Himwich, W. E., M. M. Watkins, C. Ma, et al. D. S. MacMillan, T. A. Clark, N. Eanes, N. Eanes, B. E. Schutz, and B. D. Tapley. 1993. "The consistency of the scale of the terrestrial reference frames estimated from SLR and VLBI data." in Contributions of Space Geodesy to Geodynamics DE Smith and DL Turcotte eds AGU Geodynamics Series Washington, 113-120:

    Non-Refereed

    Thomas, C. C., D. S. Macmillan, and K. Le Bail. 2019. "Performance of the Operational IVS-R1 and IVS-R4 Sessions ." Proceedings of the International VLBI Service for Geodesy and Astrometry 2018 General Meeting: “Global Geodesy and the Role of VGOS – Fundamental to Sustainable Development”, Longyearbyen, Svalbard, June 3-8, 2018 NASA/CP–2019-219039: Greenbelt, Maryland, U.S.A.: 228-232 [Full Text (Link)]

    Macmillan, D. S., A. Fey, J. M. Gipson, et al. D. Gordon, C. Jacobs, H. Krasna, S. Lambert, C. Ma, Z. Malkin, O. Titov, G. Wang, M. , and N. Zacharias. 2019. "Galactic Aberration in VLBI Analysis." Proceedings of the International VLBI Service for Geodesy and Astrometry 2018 General Meeting: “Global Geodesy and the Role of VGOS–Fundamental to Sustainable Development”, Longyearbyen, Svalbard, June 3-8, 2018 NASA/CP–2019-219039: Greenbelt, Maryland, U.S.A.: 163-168 [Full Text (Link)]

    Bolotin, S., K. D. Baver, J. M. Gipson, D. Gordon, and D. S. Macmillan. 2017. "Implementation of the vgosDb format at the GSFC VLBI Analysis Center." Proceedings of the 23rd European VLBI Group for Geodesy and Astrometry Working Meeting, 14-19 May, 2017, Gothenburg, Sweden 235-237 [Full Text (Link)]

    Le Bail, K., D. Gordon, J. M. Gipson, and D. S. Macmillan. 2017. "Investigating the noise floor of VLBI source positions." Proceedings of the 23rd European VLBI Group for Geodesy and Astrometry Working Meeting, 14-19 May, 2017, Gothenburg, Sweden 186-189 [Full Text (Link)]

    Macmillan, D. S., E. C. Pavlis, M. M. Kuzmicz-Cieslak, and D. Koenig. 2016. "Generation of the Global Geodetic Networks for GGOS." International VLBI Service for Geodesy and Astrometry, 2016 General Meeting Proceedings, "New Horizons with VGOS" NASA/CP-2016-219016: Greenbelt, MD 20711, U.S.A.: 73-77 [Full Text (Link)]

    Thomas, C. C., D. Behrend, and D. S. Macmillan. 2016. "From CONT to VGOS: the Evolution of the CONT Campaigns." International VLBI Service for Geodesy and Astrometry, 2016 General Meeting Proceedings, "New Horizons with VGOS" NASA/CP-2016-219016: Greenbelt, Maryland, 20771, U.S.A.: 127-131 [Full Text (Link)]

    Bolotin, S., K. D. Baver, J. M. Gipson, D. Gordon, and D. S. Macmillan. 2016. "Transition to vgosDb Format." International VLBI Service for Geodesy and Astrometry, 2016 General Meeting Proceedings, "New Horizons with VGOS" NASA/CP-2016-219016: Greenbelt, Maryland, 20771, U.S.A.: 222-224 [Full Text (Link)]

    Ma, C., D. S. Macmillan, D. Gordon, and K. Le Bail. 2016. "Aspects of ICRF-3." International VLBI Service for Geodesy and Astrometry, 2016 General Meeting Proceedings, "New Horizons with VGOS" NASA/CP-2016-219016: Greenbelt, MD 20771, U.S.A.: 270-274 [Full Text (Link)]

    Le Bail, K., D. Gordon, J. M. Gipson, and D. S. Macmillan. 2015. "Observing Gaia transfer sources in R&D and RDV sessions." Proceedings of the 22nd Meeting of the European VLBI Group for Geodesy and Astronomy, Sao Miguel, Azores, May 17-21. 2015 277-280, ISBN: 978-989-20-6191-7. [Full Text (Link)]

    Le Bail, K., J. Gipson, J. Juhl, and D. MacMillan. 2013. "Optimal time lags to use in modeling the thermal deformation of VLBI Antennas." 21st Meeting of the European VLBI Group for Geodesy and Astronomy, held in Espoo, Finland, March 5-8, 2013, Eds: N. Zubko and M. Poutanen, Reports of the Finnish Geodetic Institute, p. 165-168. 165-168.

    Thomas, C. C., D. Behrend, J. M. Gipson, and D. S. Macmillan. 2012. "Network Determination and Timeliness of the Rapid Sessions." International VLBI Service for Geodesy and Astrometry, 2012 General Meeting Proceedings NASA CP/2012-217504: Greenbelt, Maryland, U.S.A.: 166-170 [Full Text (Link)]

    Bolotin, S., K. D. Baver, J. M. Gipson, D. Gordon, and D. S. Macmillan. 2012. "The First Release of νSolve." International VLBI Service for Geodesy and Astrometry, 2012 General Meeting Proceedings, NASA CP/2012-217504: Greenbelt, Maryland, U.S.A.: 222-226 [Full Text (Link)]

    Juhl, J., K. Le Bail, J. M. Gipson, and D. MacMillan. 2012. "Improving VLBI Processing by using Homogeneous Data for Pressure and Temperature." International VLBI Service for Geodesy and Astrometry, 2012 General Meeting Proceedings NASA CP/2012-217504: Greenbelt, Maryland, U.S.A.: 241-245 [Full Text (Link)]

    Macmillan, D. S., D. E. Pavlis, F. G. Lemoine, D. S. Chinn, and D. D. Rowlands. 2010. "VLBI-SLR Combination Solution Using GEODYN." International VLBI Service for Geodesy and Astrometry, 2010 General Meeting Proceedings NASA CP/2010-215864: Greenbelt, Maryland, U.S.A.: 227-231 [Full Text (Link)]

    Thomas, C. C., D. Behrend, and D. S. Macmillan. 2010. "The Composition of the Master Schedule." International VLBI Service for Geodesy and Astrometry, 2010 General Meeting Proceedings NASA CP/2010-215864: Greenbelt, Maryland, U.S.A.: NASA CP/2010-215864: Greenbelt, Maryland, U.S.A.: 85-89 [Full Text (Link)]

    Gordon, D., C. Ma, D. S. Macmillan, et al. J. M. Gipson, K. D. Baver, S. Bolotin, and K. Le Bail. 2010. "GSFC VLBI analysis center." 2010 International VLBI Service for Geodesy and Astrometry Annual Report 2009 231-234 [Full Text (Link)]

    Bolotin, S., J. M. Gipson, and D. S. Macmillan. 2010. "Development of a new VLBI data analysis software." International VLBI Service for Geodesy and Astrometry, 2010 General Meeting Proceedings, "VLBI2010: From Vision to Reality" NASA CP/2010-215864: Greenbelt, Maryland, U.S.A.: 197-201 [Full Text (Link)]

    Publications

    Refereed

    MacMillan, D. S. 2022. "Comparison of EOP and scale parameters estimated from the three simultaneous CONT17 VLBI observing networks." Journal of Geodesy 96 (4): 25 [10.1007/s00190-022-01611-2]

    Merkowitz, S. M., S. Bolotin, P. Elosegui, et al. J. Esper, J. Gipson, L. Hilliard, E. Himwich, E. D. Hoffman, D. D. Lakins, R. C. Lamb, F. G. Lemoine, J. L. Long, J. F. McGarry, D. S. MacMillan, B. P. Michael, C. Noll, E. C. Pavlis, M. R. Pearlman, C. Ruszczyk, M. D. Shappirio, and D. A. Stowers. 2019. "Modernizing and expanding the NASA Space Geodesy Network to meet future geodetic requirements." Journal of Geodesy 93 (11): 2263-2273 [10.1007/s00190-018-1204-5]

    MacMillan, D. S., A. Fey, J. M. Gipson, et al. D. Gordon, C. S. Jacobs, H. Krásná, S. B. Lambert, Z. Malkin, O. Titov, G. Wang, and M. H. Xu. 2019. "Galactocentric acceleration in VLBI analysis." Astronomy & Astrophysics 630 A93 [10.1051/0004-6361/201935379]

    MacMillan, D. S. 2017. "EOP and scale from continuous VLBI observing: CONT campaigns to future VGOS networks." J. Geodesy 91 (7): 819-829 [10.1007/s00190-017-1003-4]

    Fey, A. L., D. Gordon, C. S. Jacobs, et al. C. Ma, R. A. Gaume, E. F. Arias, G. Bianco, D. A. Boboltz, S. Böckmann, S. Bolotin, P. Charlot, A. Collioud, G. Engelhardt, J. Gipson, A.-M. Gontier, R. Heinkelmann, S. Kurdubov, S. Lambert, S. Lytvyn, D. S. MacMillan, Z. Malkin, A. Nothnagel, R. Ojha, E. Skurikhina, J. Sokolova, J. Souchay, O. J. Sovers, V. Tesmer, O. Titov, G. Wang, and V. Zharov. 2015. "The Second Realization of the International Celestial Reference Frame by Very Long Baseline Interferometry." The Astronomical Journal 150 (2): 58 [10.1088/0004-6256/150/2/58]

    Eriksson, D., D. S. MacMillan, and J. M. Gipson. 2014. "Tropospheric delay ray tracing applied in VLBI analysis." Journal of Geophysical Research: Solid Earth 119 (12): 9156-9170 [10.1002/2014jb011552]

    Eriksson, D., and D. S. MacMillan. 2014. "Continental hydrology loading observed by VLBI measurements." Journal of Geodesy 88 (7): 675-690 [10.1007/s00190-014-0713-0]

    Le Bail, K., J. M. Gipson, and D. S. Macmillan. 2014. "Quantifying the Correlation Between the MEI and LOD Variations by Decomposing LOD with Singular Spectrum Analysis." International Association of Geodesy Symposia, "Earth on the Edge: Science for a Sustainable Planet", Melbourne, Australia, June 28 - July 2, 2011 139 473-477 [10.1007/978-3-642-37222-3_63]

    Gordon, D., C. Ma, D. MacMillan, et al. S. Bolotin, K. Le Bail, and J. Gipson. 2013. "Effects of ICRF2 on the TRF, CRF, and EOP." International Association of Geodesy Symposia 138 175-179 [10.1007/978-3-642-32998-2_26]

    Collilieux, X., Z. Altamimi, D. F. Argus, et al. C. Boucher, A. Dermanis, B. J. Haines, T. A. Herring, C. W. Kreemer, F. G. Lemoine, C. Ma, D. S. MacMillan, J. Mäkinen, L. Métivier, J. Ries, F. N. Teferle, and X. Wu. 2013. "External Evaluation of the Terrestrial Reference Frame: Report of the Task Force of the IAG Sub-commission 1.2." Earth on the Edge: Science for a Sustainable Planet IAG Symposia, v. 139 197-202 [10.1007/978-3-642-37222-3_25]

    Gordon, D., K. L. Bail, C. Ma, et al. D. MacMillan, S. Bolotin, and J. Gipson. 2013. "The Construction of ICRF2 and Its Impact on the Terrestrial Reference Frame." Earth on the Edge: Science for a Sustainable Planet 185-188 [10.1007/978-3-642-37222-3_23]

    Ma, C., D. MacMillan, S. Bolotin, et al. K. Le Bail, D. Gordon, and J. Gipson. 2012. "Comparison of Realizations of the Terrestrial Reference Frame." International Association of Geodesy Symposia 138 51-56 [10.1007/978-3-642-32998-2_9]

    Gordon, D., C. Ma, D. S. Macmillan, et al. S. Bolotin, K. Le Bail, and J. M. Gipson. 2012. "Effects of ICRF2 on the TRF, CRF, and EOP." REFERENCE FRAMES FOR APPLICATIONS IN GEOSCIENCES, International Association of Geodesy Symposia, "IAG Symposium on Reference Frames for Applications in Geosciences (REFAG)", Marne-la-Vallée, France, Oct: 4-8, 2010 138 175-179 [ 10.1007/978-3-642-32998-2_26]

    Heinkelmann, R., J. Böhm, S. Bolotin, et al. G. Engelhardt, R. Haas, R. Lanotte, D. S. MacMillan, M. Negusini, E. Skurikhina, O. Titov, and H. Schuh. 2011. "VLBI-derived troposphere parameters during CONT08." Journal of Geodesy 85 (7): 377-393 [10.1007/s00190-011-0459-x]

    Gipson, J. M., D. Behrend, D. Gordon, et al. W. E. Himwich, D. S. Macmillan, M. Titus, and B. Corey. 2010. "Coordinating, Scheduling, Processing and Analyzing IYA09." International VLBI Service for Geodesy and Astrometry, 2010 General Meeting Proceedings NASA CP/2010-215864: Greenbelt, Maryland, U.S.A.: NASA CP/2010-215864 90-94 [Full Text (Link)]

    Petrov, L., D. Gordon, J. Gipson, et al. D. MacMillan, C. Ma, E. Fomalont, R. Walker, and C. C. Carabajal. 2009. "Precise geodesy with the Very Long Baseline Array." Journal of Geodesy 83 (9): 859-876 [10.1007/s00190-009-0304-7]

    Kierulf, H., B. Pettersen, D. S. Macmillan, and P. Willis. 2009. "The kinematics of Ny-Alesund from space geodetic data." Journal of Geodynamics 48 (1): 37-46

    Heinkelmann, R., J. Boehm, H. Schuh, et al. S. Bolotin, G. Engelhardt, D. S. MacMillan, M. Negusini, E. Skurikhina, V. Tesmer, and O. Titov. 2007. "Combination of long time-series of troposphere zenith delays observed by VLBI." Journal of Geodesy 81 (6-8): 483-501 [10.1007/s00190-007-0147-z]

    MacMillan, D. S., and C. Ma. 2007. "Radio source instability in VLBI analysis." J Geodesy vol 81 ( 6-8): 443-453 [ 10.1007/s00190-007-0136-2]

    Fey, A., C. Ma, E. Arias, et al. P. Charlot, M. Feissel-Vernier, A. M. Gontier, C. Jacobs, J. Li, and D. MacMillan. 2004. "The Second Extension of the International Celestial Reference Frame: ICRF-EXT.1." The Astronomical Journal 127 (6): 3587-3608 [10.1086/420998]

    Macmillan, D. S., P. Fang, and B. D. Beckley. 2004. "Monitoring the TOPEX and Jason-1 Microwave Radiometers with GPS and VLBI Wet Zenith Path Delays." Marine Geodesy 27 (3-4): 703-716 [10.1080/01490410490904780]

    Fomalont, E. B., L. Petrov, D. MacMillan, D. Gordon, and C. Ma. 2003. "The Second VLBA Calibrator Survey: VCS2." The Astrophysical Journal 126 (5): 2562-2566 [10.1086/378712]

    Beasley, A., D. Gordon, A. Peck, et al. L. Petrov, D. MacMillan, E. Fomalont, and C. Ma. 2002. "The VLBA Calibrator Survey—VCS1." Astrophysical Journal, Supplement Series 141 (1): 13-21 [10.1086/339806]

    Ma, C., and D. S. MacMillan. 2000. "VLBI observations of Earth orientation, Proc IAU Colloquium 178." Polar Motion: Historical and Scientific Problems S Dick and D McCarthy eds 251-260

    MacMillan, D., W. Himwich, N. Vandenberg, et al. C. Thomas, J. Bosworth, B. Chao, T. Clark, and C. Ma. 1999. "CORE: Continuous, high-accuracy Earth orientation measurements." Proc 13th Working Meeting on European VLBI for Geodesy and Astrometry 166-171

    Ma, C., and D. S. MacMillan. 1999. "Three-dimensional VLBI velocities in a global reference frame." GPS99

    MacMillan, D., and C. Ma. 1999. "VLBI measurements of Caribbean and South American motion." Geophys Res Lett 26 919-922 [ 10.1029/1999GL900139]

    MacMillan, D., and C. Ma. 1998. "Using meteorological data assimilation models in computing tropospheric delays at microwave frequencies." Phys Chem Earth 23 97-102 [ 10.1016/S1464-1895(01)00069-2]

    Clark, T., C. Ma, J. Ryan, et al. B. Chao, J. Gipson, D. MacMillan, N. Vandenberg, T. Eubanks, and A. Niell. 1998. "Earth rotation yields valuable information about the dynamics of the Earth system." EOS Trans Am Geophys Union 79 205-206 [ 10.1029/98EO00149]

    Macmillan, D. S., and S. Ma. 1997. "Atmospheric gradients and the VLBI terrestrial and celestial reference frames." Geophysical Research Letters 24 (4): 453-456 [10.1029/97GL00143]

    Macmillan, D., and C. Ma. 1994. "Evaluation of very long baseline interferometry atmospheric modeling improvements." Journal of Geophysical Research 99 ( B1): 637-651 [ 10.1029/93JB02162]

    Rogers, A. E., R. J. Cappallo, B. E. Corey, et al. H. F. Hinteregger, A. E. Niell, R. B. Phillips, D. L. Smythe, A. R. Whitney, T. A. Herring, J. M. Bosworth, T. A. Clark, C. Ma, J. W. Ryan, J. L. Davis, I. I. Shapiro, G. Elgered, K. Jaldehag, J. M. Johansson, B. O. Rönnäng, W. E. Carter, J. R. Ray, D. S. Robertson, T. M. Eubanks, K. A. Kingham, R. C. Walker, W. E. Himwich, C. E. Kuehn, D. S. Macmillan, R. I. Potash, D. B. Shaffer, N. R. Vandenberg, J. C. Webber, R. L. Allshouse, B. R. Schupler, and D. Gordon. 1993. "Improvements in the accuracy of geodetic VLBI." Geodynamics Series 47-63 [10.1029/gd025p0047]

    Himwich, W. E., M. M. Watkins, C. Ma, et al. D. S. MacMillan, T. A. Clark, N. Eanes, N. Eanes, B. E. Schutz, and B. D. Tapley. 1993. "The consistency of the scale of the terrestrial reference frames estimated from SLR and VLBI data." in Contributions of Space Geodesy to Geodynamics DE Smith and DL Turcotte eds AGU Geodynamics Series Washington 113-120

    Non-Refereed

    Thomas, C. C., D. S. Macmillan, and K. Le Bail. 2019. "Performance of the Operational IVS-R1 and IVS-R4 Sessions ." Proceedings of the International VLBI Service for Geodesy and Astrometry 2018 General Meeting: “Global Geodesy and the Role of VGOS – Fundamental to Sustainable Development”, Longyearbyen, Svalbard, June 3-8, 2018 NASA/CP–2019-219039 228-232 [Full Text (Link)]

    Macmillan, D. S., A. Fey, J. M. Gipson, et al. D. Gordon, C. Jacobs, H. Krasna, S. Lambert, C. Ma, Z. Malkin, O. Titov, G. Wang, M. , and N. Zacharias. 2019. "Galactic Aberration in VLBI Analysis." Proceedings of the International VLBI Service for Geodesy and Astrometry 2018 General Meeting: “Global Geodesy and the Role of VGOS–Fundamental to Sustainable Development”, Longyearbyen, Svalbard, June 3-8, 2018 NASA/CP–2019-219039 163-168 [Full Text (Link)]

    Bolotin, S., K. D. Baver, J. M. Gipson, D. Gordon, and D. S. Macmillan. 2017. "Implementation of the vgosDb format at the GSFC VLBI Analysis Center." Proceedings of the 23rd European VLBI Group for Geodesy and Astrometry Working Meeting, 14-19 May, 2017, Gothenburg, Sweden 235-237 [Full Text (Link)]

    Le Bail, K., D. Gordon, J. M. Gipson, and D. S. Macmillan. 2017. "Investigating the noise floor of VLBI source positions." Proceedings of the 23rd European VLBI Group for Geodesy and Astrometry Working Meeting, 14-19 May, 2017, Gothenburg, Sweden 186-189 [Full Text (Link)]

    Macmillan, D. S., E. C. Pavlis, M. M. Kuzmicz-Cieslak, and D. Koenig. 2016. "Generation of the Global Geodetic Networks for GGOS." International VLBI Service for Geodesy and Astrometry, 2016 General Meeting Proceedings, "New Horizons with VGOS" NASA/CP-2016-219016 73-77 [Full Text (Link)]

    Thomas, C. C., D. Behrend, and D. S. Macmillan. 2016. "From CONT to VGOS: the Evolution of the CONT Campaigns." International VLBI Service for Geodesy and Astrometry, 2016 General Meeting Proceedings, "New Horizons with VGOS" NASA/CP-2016-219016 127-131 [Full Text (Link)]

    Bolotin, S., K. D. Baver, J. M. Gipson, D. Gordon, and D. S. Macmillan. 2016. "Transition to vgosDb Format." International VLBI Service for Geodesy and Astrometry, 2016 General Meeting Proceedings, "New Horizons with VGOS" NASA/CP-2016-219016 222-224 [Full Text (Link)]

    Ma, C., D. S. Macmillan, D. Gordon, and K. Le Bail. 2016. "Aspects of ICRF-3." International VLBI Service for Geodesy and Astrometry, 2016 General Meeting Proceedings, "New Horizons with VGOS" NASA/CP-2016-219016 270-274 [Full Text (Link)]

    Le Bail, K., D. Gordon, J. M. Gipson, and D. S. Macmillan. 2015. "Observing Gaia transfer sources in R&D and RDV sessions." Proceedings of the 22nd Meeting of the European VLBI Group for Geodesy and Astronomy, Sao Miguel, Azores, May 17-21. 2015 277-280 [Full Text (Link)]

    Le Bail, K., J. Gipson, J. Juhl, and D. MacMillan. 2013. "Optimal time lags to use in modeling the thermal deformation of VLBI Antennas." 21st Meeting of the European VLBI Group for Geodesy and Astronomy, held in Espoo, Finland, March 5-8, 2013, Eds: N. Zubko and M. Poutanen, Reports of the Finnish Geodetic Institute, p. 165-168. 165-168

    Thomas, C. C., D. Behrend, J. M. Gipson, and D. S. Macmillan. 2012. "Network Determination and Timeliness of the Rapid Sessions." International VLBI Service for Geodesy and Astrometry, 2012 General Meeting Proceedings NASA CP/2012-217504 166-170 [Full Text (Link)]

    Bolotin, S., K. D. Baver, J. M. Gipson, D. Gordon, and D. S. Macmillan. 2012. "The First Release of νSolve." International VLBI Service for Geodesy and Astrometry, 2012 General Meeting Proceedings, NASA CP/2012-217504 222-226 [Full Text (Link)]

    Juhl, J., K. Le Bail, J. M. Gipson, and D. MacMillan. 2012. "Improving VLBI Processing by using Homogeneous Data for Pressure and Temperature." International VLBI Service for Geodesy and Astrometry, 2012 General Meeting Proceedings NASA CP/2012-217504 241-245 [Full Text (Link)]

    Macmillan, D. S., D. E. Pavlis, F. G. Lemoine, D. S. Chinn, and D. D. Rowlands. 2010. "VLBI-SLR Combination Solution Using GEODYN." International VLBI Service for Geodesy and Astrometry, 2010 General Meeting Proceedings NASA CP/2010-215864 227-231 [Full Text (Link)]

    Thomas, C. C., D. Behrend, and D. S. Macmillan. 2010. "The Composition of the Master Schedule." International VLBI Service for Geodesy and Astrometry, 2010 General Meeting Proceedings NASA CP/2010-215864: Greenbelt, Maryland, U.S.A.: NASA CP/2010-215864 85-89 [Full Text (Link)]

    Gordon, D., C. Ma, D. S. Macmillan, et al. J. M. Gipson, K. D. Baver, S. Bolotin, and K. Le Bail. 2010. "GSFC VLBI analysis center." 2010 International VLBI Service for Geodesy and Astrometry Annual Report 2009 231-234 [Full Text (Link)]

    Bolotin, S., J. M. Gipson, and D. S. Macmillan. 2010. "Development of a new VLBI data analysis software." International VLBI Service for Geodesy and Astrometry, 2010 General Meeting Proceedings, "VLBI2010: From Vision to Reality" NASA CP/2010-215864 197-201 [Full Text (Link)]

                                                                                                                                                                                            
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    • Last Updated: 05/26/2023