[Iaude] MPEC J283: 2021 PO [a=1.81,e=0.84,i=9.0,H=19.35]
mpec at cfa.harvard.edu
mpec at cfa.harvard.edu
Sun May 12 10:13:38 EDT 2024
M.P.E.C. 2024-J283 Issued 2024 May 12, 14:12 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets, routine data on comets and natural satellites,
and occasional editorial announcements. 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2021 PO
Revision to MPEC 2021-P28
Additional Observations:
K21P00O C2016 08 07.35000619 44 07.136-22 54 47.42 21.47GVEJ283F51
K21P00O C2016 08 07.36210219 44 05.068-22 54 49.72 21.54GVEJ283F51
K21P00O C2016 08 07.37425419 44 02.981-22 54 52.15 21.33GVEJ283F51
K21P00O C2016 08 07.38636919 44 00.897-22 54 54.66 21.47GVEJ283F51
K21P00O KC2024 05 10.28557607 14 43.315-04 15 16.96 20.2 GVEJ283474
K21P00O KC2024 05 10.28806507 14 45.535-04 15 27.32 20.9 GVEJ283474
K21P00O KC2024 05 10.29055207 14 47.690-04 15 38.23 20.5 GVEJ283474
Observer details:
474 Mount John Observatory, Lake Tekapo. Observers A. C. Gilmore, P. M.
Kilmartin. Measurer P. M. Kilmartin. 1.0-m f/7.7 Reflector + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Herman, T. Lowe, P. Minguez, A.
Schultz, I. Smith. Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
Weryk. 1.8-m Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
160807 F51 0.01+ 0.00+ 240510 474 0.03+ 0.03+ E2024-E11 +0.00 days
Orbital elements:
2021 PO Earth MOID = 0.0585 AU
Epoch 2024 Mar. 31.0 TT = JDT 2460400.5 Veres
M 358.87649 (2000.0) P Q
n 0.40374824 Peri. 145.27817 -0.08757907 -0.98885244
a 1.8129909 Node 309.43681 +0.87499096 -0.01858136
e 0.8361168 Incl. 8.97001 +0.47615200 -0.14773487
P 2.44 H 19.35 G 0.15 U 0
Residuals in seconds of arc
160807 F51 0.1- 0.3- 210804 H21 0.0 0.1- 210809 T08 0.0 0.3+
160807 F51 0.1+ 0.1- 210804 H36 0.0 0.1- 210809 T08 0.3- 0.2-
160807 F51 0.1+ 0.0 210804 H36 0.4- 0.0 210809 T08 0.0 0.2-
160807 F51 0.1+ 0.1- 210804 H36 0.4- 0.0 210809 D29 0.3- 0.2-
210703 F51 0.1- 0.0 210804 E94 0.2- 0.1+ 210809 D29 0.1+ 0.2+
210703 F51 0.1- 0.1+ 210804 E94 0.1- 0.3- 210809 D29 0.3- 0.3-
210703 F51 0.3- 0.0 210804 E94 0.0 0.6- 210809 033 0.1- 0.1-
210802 T08 0.1+ 0.5- 210804 E94 0.2+ 1.0- 210809 033 0.2- 0.1+
210802 T08 0.5- 0.4- 210804 E23 0.2+ 0.4+ 210809 033 0.1+ 0.0
210802 F51 0.0 0.0 210804 E23 0.2- 0.3+ 210810 T08 0.2+ 0.1+
210802 T08 0.1+ 0.2+ 210804 E23 0.0 0.2- 210810 T08 0.6- 0.3+
210802 F51 0.1+ 0.0 210805 T08 0.1+ 0.8+ 210810 T08 0.0 0.8-
210802 T08 0.2- 0.6+ 210805 T08 0.5+ 0.6+ 210810 T08 0.1- 0.0
210802 F51 0.1+ 0.0 210805 T08 0.4+ 0.3+ 210812 T05 0.2- 0.1+
210802 L81 0.0 0.1+ 210805 T08 (1.1- 0.7+) 210812 T05 0.6+ 0.0
210802 L81 0.0 0.2- 210805 D29 0.0 0.2+ 210812 T05 0.1+ 0.1+
210802 L81 0.1- 0.0 210805 D29 0.2+ 0.1+ 210812 T05 0.1+ 0.1-
210802 104 0.0 0.7- 210805 D29 0.1- 0.1+ 210812 L18 0.9+ 0.5-
210802 104 0.2- 0.0 210806 T08 0.1- 0.2+ 210812 L18 0.3- 0.1+
210802 104 0.3+ 0.7- 210806 T08 0.2- 0.1+ 210812 L18 0.1- 0.4+
210803 L01 0.6- 0.2- 210806 T08 0.1+ 0.3+ 210813 T08 0.2- 1.0+
210803 L01 0.1+ 0.0 210806 T08 0.2- 0.4- 210813 T08 0.3- 0.9+
210803 K93 0.1+ 0.1- 210806 R65 0.3- 0.0 210813 T08 0.1- 0.3-
210803 K93 0.4- 0.1- 210806 R65 0.0 0.1- 210813 T08 0.2+ 0.6-
210803 K93 0.1+ 0.0 210806 R65 0.4- 0.0 210813 T08 0.2+ 0.6-
210803 K93 0.1+ 0.1+ 210807 T05 0.0 0.4- 210813 T08 0.3+ 0.6+
210803 K93 0.2+ 0.0 210807 T08 0.4- 0.2- 210814 L18 0.0 0.1-
210803 807 0.0 0.1- 210807 T08 1.1- 0.7- 210814 L18 0.2+ 0.9+
210803 807 0.0 0.1- 210807 T05 0.4- 0.4- 210814 L18 0.7- 0.3-
210803 807 0.1+ 0.1- 210807 T08 0.2+ 0.2+ 210814 L18 0.7+ 0.4-
210803 H21 0.2+ 0.0 210807 T05 0.0 0.1- 210814 204 0.2+ 0.1+
210803 H21 0.2+ 0.1+ 210807 T08 0.3- 0.1+ 210814 204 0.1+ 0.1-
210803 H21 0.2+ 0.1+ 210807 T05 0.3- 0.2- 210814 204 0.1- 0.1+
210803 654 0.0 0.0 210807 157 0.4- 0.0 210816 T05 0.2- 0.5+
210803 654 0.1- 0.1- 210807 157 0.2- 0.1+ 210816 T05 0.4+ 0.1-
210803 654 0.1+ 0.1- 210807 157 0.1- 0.6+ 210816 T05 0.3+ 0.2+
210803 P07 0.4- 0.0 210808 T08 0.0 0.1+ 210816 T05 0.1- 0.4+
210803 P07 0.0 0.4+ 210808 T05 0.1+ 0.5+ 210825 595 0.4+ 0.2+
210803 P07 0.2+ 0.4+ 210808 T08 0.5- 0.1+ 210825 595 0.2+ 0.2-
210803 P07 0.2+ 0.3+ 210808 T05 0.2- 0.5- 210825 595 0.6+ 0.2-
210804 807 0.0 0.0 210808 T05 0.1+ 0.3- 210827 595 0.4+ 0.2+
210804 H21 0.1- 0.2+ 210808 T05 0.6- 0.2- 210827 595 0.1+ 0.1-
210804 807 0.1- 0.1- 210808 T08 0.2- 0.6- 210907 691 0.1- 0.1-
210804 H21 0.0 0.0 210808 T05 0.3- 0.0 210907 691 0.2- 0.2-
210804 H21 0.1- 0.1+ 210808 T05 0.1- 0.4- 240510 474 0.2- 0.1+
210804 807 0.0 0.1- 210808 T08 0.2+ 0.4+ 240510 474 0.3+ 0.2+
210804 H21 0.0 0.1+ 210809 T08 0.1+ 0.0 240510 474 0.2- 0.3-
Ephemeris:
2021 PO a,e,i = 1.81, 0.84, 9 q = 0.2971
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2024 04 12 02 45 48.4 +13 49 34 0.7800 0.3930 21.1 113.3 21.2
...
2024 04 27 04 30 09.5 +08 44 48 0.4411 0.6786 32.7 126.7 22.1
...
2024 05 05 05 59 39.4 +01 49 40 0.3435 0.8256 49.1 112.6 20.9
...
2024 05 11 07 25 17.2 -05 05 11 0.3207 0.9298 66.5 95.1 20.1
2024 05 12 07 40 02.6 -06 13 11 0.3216 0.9467 69.5 92.0 20.0
2024 05 13 07 54 40.5 -07 18 46 0.3240 0.9634 72.4 88.9 20.0
...
2024 05 19 09 15 08.0 -12 35 17 0.3630 1.0608 87.7 72.3 19.8
...
2024 05 27 10 33 37.3 -16 12 32 0.4633 1.1837 99.8 57.5 20.1
...
2024 06 11 11 56 10.8 -18 21 01 0.7210 1.3950 105.7 44.5 21.1
A. U. Tomatic (C) Copyright 2024 MPC M.P.E.C. 2024-J283
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