MPEC 2021-L71 : 2015 AZ44
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M.P.E.C. 2021-L71 Issued 2021 June 7, 13:10 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Division F of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2015 AZ44
Revision to MPEC 2015-B22
Additional Observations:
K15A44Z C2014 06 03.54321921 55 06.947-04 32 20.15 22.90GVEL071F51
K15A44Z C2014 06 03.55582821 55 09.455-04 32 12.76 22.40GVEL071F51
K15A44Z C2014 11 23.57166208 57 54.299+02 19 05.59 22.13GVEL071F51
K15A44Z C2014 11 23.58435808 57 54.845+02 19 09.80 21.69GVEL071F51
K15A44Z C2014 11 23.59709808 57 55.380+02 19 13.70 21.79GVEL071F51
K15A44Z C2014 11 25.56274008 59 24.795+02 30 36.95 22.08GVEL071F51
K15A44Z C2014 11 25.57544008 59 25.254+02 30 41.98 22.14GVEL071F51
K15A44Z C2014 11 25.58820608 59 25.714+02 30 46.59 21.45GVEL071F51
K15A44Z C2014 11 25.60105208 59 26.170+02 30 51.27 22.38GVEL071F51
K15A44Z C2014 12 15.60540009 01 33.157+06 03 15.86 21.97GVEL071F51
K15A44Z C2014 12 16.54911109 01 01.374+06 18 13.12 21.20GVEL071F51
K15A44Z C2014 12 16.56158609 01 00.841+06 18 24.95 21.03GVEL071F51
K15A44Z C2014 12 21.57035308 57 09.084+07 45 39.81 21.38GVEL071F51
K15A44Z C2014 12 21.58198008 57 08.340+07 45 52.80 21.43GVEL071F51
K15A44Z C2017 03 21.29083311 21 26.209+20 41 24.06 23.70GVEL071F51
K15A44Z C2017 03 21.30365511 21 25.052+20 41 31.34 23.02GVEL071F51
K15A44Z C2017 03 21.32905411 21 22.759+20 41 45.94 23.87GVEL071F51
K15A44Z C2019 04 02.55252814 08 36.521+07 26 38.29 21.79GVEL071F51
K15A44Z C2019 04 07.54119014 01 58.341+08 31 23.65 22.17GVEL071F51
K15A44Z C2019 04 07.56574314 01 56.202+08 31 41.82 23.11GVEL071F51
K15A44Z C2019 04 08.54104214 00 33.607+08 43 54.11 22.66GVEL071F51
K15A44Z C2019 04 08.55312414 00 32.540+08 44 02.84 22.95GVEL071F51
K15A44Z C2019 04 08.56526014 00 31.431+08 44 11.47 22.45GVEL071F51
K15A44Z KC2019 04 09.31040413 59 28.202+08 53 22.51 24.09GVEL071F51
K15A44Z C2019 05 06.33164113 19 30.657+12 19 38.11 23.55GVEL071F51
K15A44Z C2021 05 20.50237016 54 18.317-01 05 12.53 22.24GVEL071F51
K15A44Z C2021 05 20.51360416 54 17.335-01 05 08.75 22.32GVEL071F51
K15A44Z C2021 06 02.51835216 33 07.840-00 16 50.10 21.75GVEL071F51
K15A44Z C2021 06 07.41168116 23 58.456-00 16 37.05 21.94wUEL071F51
K15A44Z C2021 06 07.42371216 23 57.012-00 16 37.72 21.71wUEL071F51
K15A44Z C2021 06 07.43573616 23 55.577-00 16 38.60 21.97wUEL071F51
K15A44Z C2021 06 07.44781116 23 54.104-00 16 39.38 21.69wUEL071F51
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, I. Smith, M. Willman. Measurers S. Chastel, M. Huber, Y.
Ramanjooloo, R. Wainscoat, R. Weryk, K. Chambers, T. de Boer, L. Denneau,
J. Fairlamb, H. Flewelling, C.-C. Lin, E. Magnier. 1.8-m Ritchey-Chretien
+ CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or zero decimals in degrees), reference and Delta-T
140603 F51 0+ 0+ 210607 F51 23+ 4+ MPO342305 -634 days
Orbital elements:
2015 AZ44 Earth MOID = 0.0915 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 184.21990 (2000.0) P Q
n 0.55144621 Peri. 246.49248 +0.97716464 -0.15654623
a 1.4727667 Node 122.22972 +0.19456493 +0.93098376
e 0.3195614 Incl. 9.77884 -0.08540348 +0.32979163
P 1.79 H 21.3 G 0.15 U 1
Residuals in seconds of arc
140603 F51 0.3+ 0.1+ 150114 F51 0.0 0.0 170321 F51 0.1+ 0.1-
140603 F51 0.2- 0.1+ 150115 H21 0.0 0.1+ 170321 F51 0.0 0.1+
141123 F51 0.0 0.1+ 150115 H21 0.1+ 0.2+ 190402 F51 0.1- 0.1+
141123 F51 0.1+ 0.1+ 150115 H21 0.3+ 0.1+ 190407 F51 0.0 0.0
141123 F51 0.1+ 0.1- 150116 291 0.1- 0.1+ 190407 F51 0.0 0.3-
141125 F51 0.0 0.2- 150116 291 0.2+ 0.1- 190408 F51 0.0 0.2+
141125 F51 0.0 0.1+ 150116 291 0.3- 0.3+ 190408 F51 0.1+ 0.1-
141125 F51 0.1+ 0.0 150116 F51 0.0 0.1- 190408 F51 0.4- 0.4-
141125 F51 0.1+ 0.1- 150116 F51 0.1+ 0.1- 190409 F51 0.1+ 0.1-
141215 F51 0.3+ 0.0 150116 F51 0.0 0.1- 190506 F51 0.2- 0.5+
141216 F51 0.1+ 0.0 150117 291 0.3- 1.2+ 210520 F51 0.1- 0.1+
141216 F51 0.2+ 0.3- 150117 291 0.5+ 0.4+ 210520 F51 0.1- 0.1-
141221 F51 0.0 0.0 150117 291 0.7- 0.9+ 210602 F51 0.0 0.0
141221 F51 0.1- 0.0 150124 705 0.2- 0.2- 210607 F51 0.0 0.1-
150114 F51 0.1- 0.0 150124 705 0.2- 0.1- 210607 F51 0.1+ 0.1+
150114 F51 0.2- 0.1+ 150124 705 0.1- 0.1- 210607 F51 0.2+ 0.0
150114 F51 0.2- 0.1+ 170321 F51 0.2+ 0.0 210607 F51 0.1- 0.1+
Ephemeris:
2015 AZ44 a,e,i = 1.47, 0.32, 10 q = 1.0021
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 05 08 17 07 32.1 -02 34 28 0.7330 1.6655 145.4 20.1 22.7
...
2021 05 23 16 50 45.0 -00 51 22 0.6280 1.6082 156.6 14.5 22.1
...
2021 05 31 16 37 40.7 -00 21 06 0.5883 1.5758 158.4 13.7 21.9
...
2021 06 06 16 26 39.2 -00 15 25 0.5663 1.5507 156.5 15.1 21.9
2021 06 07 16 24 45.5 -00 16 06 0.5633 1.5464 156.0 15.5 21.9
2021 06 08 16 22 51.4 -00 17 16 0.5604 1.5422 155.3 15.9 21.8
...
2021 06 14 16 11 27.1 -00 34 56 0.5472 1.5162 150.5 19.2 21.9
...
2021 06 22 15 57 09.3 -01 27 02 0.5387 1.4806 142.6 24.7 22.0
...
2021 07 07 15 37 13.4 -04 22 30 0.5442 1.4116 126.8 35.2 22.2
A. U. Tomatic (C) Copyright 2021 MPC M.P.E.C. 2021-L71
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