[Iaude] MPEC U91: 2021 PR16 [a=1.11,e=0.08,i=1.3,H=26.53]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Wed Oct 18 16:22:46 EDT 2023
M.P.E.C. 2023-U91 Issued 2023 October 18, 20:21 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 PR16
Revision to MPEC 2021-P180
Additional Observations:
K21P16R C2014 09 18.39705 22 58 08.470-17 37 43.92 20.8 wLEU091F51
K21P16R C2014 09 18.40824 22 58 06.928-17 37 33.31 20.9 wLEU091F51
K21P16R 1C2014 10 03.20704 22 46 24.06 -11 41 24.0 20.6 VqEU091G96
K21P16R 1C2014 10 03.21708 22 46 23.08 -11 41 05.6 19.9 VqEU091G96
K21P16R 1C2014 10 03.22710 22 46 22.14 -11 40 45.6 20.5 VqEU091G96
K21P16R 1C2014 10 03.23715 22 46 21.26 -11 40 25.9 21.8 VqEU091G96
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers N. Primak, A. Schultz, T. Goggia, M.
Willman. Measurers B. Bolin, K. Chambers, S. Chastel, L. Denneau, H.
Flewelling, M. Huber, E. Magnier, E. Schunova, R. Wainscoat, C. Waters.
1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer R. A. Kowalski. Measurers E. J. Christensen,
A. R. Gibbs, A. D. Grauer, R. E. Hill, J. A. Johnson, R. A. Kowalski, S.
M. Larson, F. C. Shelly. 1.5-m reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
140918 F51 0.10+ 0.03+ 141003 G96 0.10+ 0.04+ E2021-V05 -0.00 days
Orbital elements:
2021 PR16 Earth MOID = 0.0296 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Veres
M 200.20645 (2000.0) P Q
n 0.84114917 Peri. 36.54505 +0.64099606 -0.76752486
a 1.1114434 Node 13.59162 +0.69860606 +0.58047093
e 0.0826788 Incl. 1.32770 +0.31792077 +0.27195422
P 1.17 H 26.53 G 0.15 U 1
Residuals in seconds of arc
140918 F51 0.0 0.1- 210815 F51 0.3- 0.2- 210829 807 0.0 0.1+
140918 F51 0.1+ 0.1- 210815 F51 0.2+ 0.0 210831 F52 0.1- 0.2+
141003 G96 0.2- 0.7+ 210815 F51 0.3- 0.0 210831 F52 0.2- 0.0
141003 G96 0.5- 0.2- 210816 F51 0.0 0.0 210831 F52 0.0 0.1+
141003 G96 0.3- 0.3+ 210816 F51 0.0 0.0 210907 F52 0.1+ 0.0
141003 G96 0.9+ 0.4+ 210816 F51 0.1- 0.0 210907 F52 0.0 0.0
210809 F51 0.0 0.1- 210816 F51 0.1- 0.0 210907 F52 0.0 0.0
210809 F51 0.0 0.1- 210816 F51 0.1- 0.0 210925 807 0.1+ 0.1+
210809 F51 0.0 0.0 210816 F51 0.2- 0.2+ 210925 807 0.7- 0.3-
210810 568 0.0 0.0 210818 F51 0.1+ 0.0 210925 807 0.3- 0.8-
210810 568 0.1+ 0.0 210818 F51 0.1+ 0.0 211101 291 0.1- 0.1+
210810 568 0.0 0.0 210818 F51 0.1- 0.0 211101 291 0.4+ 0.2+
210815 F51 0.2+ 0.0 210829 807 0.0 0.2- 211101 291 0.0 0.1+
210815 F51 0.1+ 0.0 210829 807 0.1+ 0.1+
Ephemeris:
2021 PR16 a,e,i = 1.11, 0.08, 1 q = 1.0196
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 09 18 14 16 12.3 -14 27 45 1.7334 1.1963 42.1 34.3 29.5
...
2023 10 03 15 05 45.3 -18 18 11 1.7659 1.1873 39.9 32.8 29.5
...
2023 10 11 15 33 12.3 -20 02 24 1.7809 1.1811 38.8 32.0 29.5
...
2023 10 17 15 54 17.6 -21 10 30 1.7909 1.1759 37.9 31.4 29.5
2023 10 18 15 57 50.9 -21 20 57 1.7925 1.1750 37.7 31.3 29.5
2023 10 19 16 01 25.0 -21 31 08 1.7941 1.1741 37.6 31.2 29.5
...
2023 10 25 16 23 03.7 -22 26 18 1.8028 1.1683 36.7 30.6 29.5
...
2023 11 02 16 52 31.2 -23 23 13 1.8129 1.1598 35.6 29.9 29.4
...
2023 11 17 17 49 19.5 -24 13 31 1.8274 1.1423 33.5 28.6 29.4
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-U91
More information about the Iaude
mailing list