MPEC 2023-M20 : 2009 SQ
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M.P.E.C. 2023-M20 Issued 2023 June 17, 05:23 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@CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2009 SQ
Revision to MPEC 2009-S27
Additional Observations:
K09S00Q S2023 06 10.37448 09 06 10.94 -62 08 42.8 19 RLEM020C51
K09S00Q s2023 06 10.37448 1 - 1258.2868 - 1172.2901 - 6608.6545 EM020C51
K09S00Q S2023 06 10.63400 09 08 15.10 -62 11 20.0 LEM020C51
K09S00Q s2023 06 10.63400 1 - 1202.2594 - 1166.3524 - 6620.0983 EM020C51
K09S00Q S2023 06 10.76388 09 09 16.88 -62 12 37.2 LEM020C51
K09S00Q s2023 06 10.76388 1 - 1254.4781 - 1181.5187 - 6607.6877 EM020C51
K09S00Q S2023 06 10.82921 09 09 48.03 -62 13 16.2 LEM020C51
K09S00Q s2023 06 10.82921 1 - 1518.9469 - 1242.9919 - 6540.5174 EM020C51
K09S00Q S2023 06 10.89415 09 10 18.95 -62 13 54.3 LEM020C51
K09S00Q s2023 06 10.89415 1 - 1544.8124 - 1250.7780 - 6532.9596 EM020C51
K09S00Q S2023 06 11.21861 09 12 53.12 -62 16 53.7 LEM020C51
K09S00Q s2023 06 11.21861 1 - 1516.7396 - 1254.4552 - 6538.7879 EM020C51
K09S00Q S2023 06 11.28355 09 13 22.60 -62 17 47.7 LEM020C51
K09S00Q s2023 06 11.28355 1 - 1542.8462 - 1262.4860 - 6531.1188 EM020C51
K09S00Q S2023 06 11.34849 09 13 54.76 -62 18 03.9 LEM020C51
K09S00Q s2023 06 11.34849 1 - 1569.2775 - 1270.6384 - 6523.2205 EM020C51
K09S00Q S2023 06 11.41331 09 14 25.38 -62 18 37.6 LEM020C51
K09S00Q s2023 06 11.41331 1 - 1516.6216 - 1260.4343 - 6537.6384 EM020C51
K09S00Q S2023 06 11.60801 09 15 57.31 -62 20 17.4 LEM020C51
K09S00Q s2023 06 11.60801 1 - 1516.5547 - 1266.4438 - 6536.4646 EM020C51
K09S00Q S2023 06 11.67295 09 16 28.23 -62 20 50.4 LEM020C51
K09S00Q s2023 06 11.67295 1 - 1542.8679 - 1274.7161 - 6528.6821 EM020C51
K09S00Q S2023 06 11.80271 09 17 29.30 -62 21 54.8 LEM020C51
K09S00Q s2023 06 11.80271 1 - 1516.9437 - 1272.5819 - 6535.1540 EM020C51
K09S00Q S2023 06 11.80283 09 17 29.67 -62 21 53.9 LEM020C51
K09S00Q s2023 06 11.80283 1 - 1595.5952 - 1291.4262 - 6512.6736 EM020C51
K09S00Q S2023 06 11.86765 09 18 00.21 -62 22 27.2 LEM020C51
K09S00Q s2023 06 11.86765 1 - 1547.7478 - 1282.1478 - 6526.0814 EM020C51
K09S00Q S2023 06 11.99740 09 19 01.20 -62 23 28.1 LEM020C51
K09S00Q s2023 06 11.99740 1 - 1522.3004 - 1280.0681 - 6532.4610 EM020C51
K09S00Q S2023 06 12.06235 09 19 31.70 -62 23 57.3 LEM020C51
K09S00Q s2023 06 12.06235 1 - 1548.9602 - 1288.6238 - 6524.4929 EM020C51
K09S00Q S2023 06 12.32186 09 21 33.61 -62 25 56.4 LEM020C51
K09S00Q s2023 06 12.32186 1 - 1498.9342 - 1284.4160 - 6536.9699 EM020C51
K09S00Q S2023 06 12.38680 09 22 03.67 -62 26 25.6 LEM020C51
K09S00Q s2023 06 12.38680 1 - 1525.8360 - 1293.1845 - 6529.0013 EM020C51
Observer details:
C51 WISE. Observer Near-Earth Object Wide-field Infrared Survey Explorer.
Measurers A. K. Mainzer, J. M. Bauer, T. Grav, J. R. Masiero, R. M. Cutri,
J. W. Dailey, J. Pittichova, E. L. Wright.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
230610 C51 0.50+ 1.92+ 230612 C51 0.55+ 1.80+ MPO164363 +1.73 days
Orbital elements:
2009 SQ Earth MOID = 0.2795 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 351.55149 (2000.0) P Q
n 0.22088038 Peri. 140.92981 -0.55783122 -0.80834498
a 2.7103869 Node 340.48654 +0.54706009 -0.18763099
e 0.8604687 Incl. 34.28391 +0.62413908 -0.55800806
P 4.46 H 19.05 G 0.15 U 1
Residuals in seconds of arc
090820 691 0.5- 0.0 090919 G56 0.4- 0.3- 090926 704 0.3- 0.2-
090820 691 0.6- 0.0 090919 204 0.0 0.1+ 090926 704 0.5- 1.0+
090820 691 0.4- 0.2+ 090919 204 0.1+ 0.2+ 090926 704 1.0- 0.7+
090917 703 1.0- 0.1- 090919 204 0.2+ 0.0 090926 704 0.5- 0.0
090917 703 0.1- 0.3+ 090921 B03 0.7- 0.9- 090927 118 0.3- 0.4+
090917 703 0.9+ 0.3+ 090921 B03 1.0+ 0.1+ 090927 118 0.5- 0.3+
090917 703 0.0 0.1- 090921 B03 0.2- 0.1- 090927 118 0.5- 0.5-
090917 703 0.7- 0.1+ 090921 B03 0.9+ 0.4- 090929 118 0.0 0.1-
090917 703 1.0- 0.5- 090922 560 0.2- 0.1- 090929 118 0.6+ 0.1+
090917 F65 0.2+ 0.0 090922 560 0.0 0.2- 091018 H36 1.5- 0.9+
090917 F65 0.4+ 0.1- 090922 560 0.1+ 0.0 091018 H36 1.5+ 1.3+
090917 J95 0.0 0.6- 090923 G56 0.8+ 0.2+ 230610 C51 0.2- 0.5-
090917 J95 0.4- 0.2- 090923 G56 1.2- 0.5- 230610 C51 0.8+ 0.4+
090917 A13 0.1- 0.3- 090923 G56 0.1- 0.5+ 230610 C51 0.3- 0.1-
090917 J95 0.2- 0.7+ 090925 703 0.0 0.0 230610 C51 0.2+ 0.8-
090917 A13 0.8+ 0.2- 090925 703 1.0- 1.3- 230610 C51 0.2+ 1.5-
090917 A13 0.3+ 0.3- 090925 703 0.8- 1.2- 230611 C51 0.2- 0.2-
090917 A13 0.3+ 0.1- 090925 703 0.6+ 0.4- 230611 C51 (9.4- 19.1-)
090918 H55 0.3+ 0.3+ 090925 704 0.5+ 1.2+ 230611 C51 0.2+ 0.7-
090918 H55 0.1+ 0.3+ 090925 704 1.5+ 1.0+ 230611 C51 0.5- 0.3-
090918 H55 0.2+ 0.3+ 090925 704 0.8- 0.1- 230611 C51 1.8- 0.3+
090919 H55 1.5- 1.6- 090925 704 0.4+ 0.3+ 230611 C51 0.1- 0.0
090919 H55 0.1- 1.6- 090925 B03 0.1+ 0.1+ 230611 C51 1.3- 0.1-
090919 H55 0.7- 0.3+ 090925 B03 0.2- 0.5- 230611 C51 1.0+ 0.9+
090919 H55 0.1+ 0.4+ 090925 B03 1.6- 0.3- 230611 C51 0.8+ 0.9-
090919 H55 0.1+ 1.2+ 090925 B03 0.2+ 0.4- 230611 C51 0.1- 0.1+
090919 H26 1.5+ 0.4+ 090925 B03 0.2+ 0.8- 230612 C51 0.5- 1.4+
090919 H26 1.1+ 0.4- 090925 B03 0.4+ 0.1+ 230612 C51 0.2- 0.3+
090919 H26 0.7+ 0.1- 090926 I20 0.4- 0.4- 230612 C51 2.8- 0.2-
090919 G56 0.3+ 0.3- 090926 I20 0.6- 0.4-
090919 G56 0.6+ 0.6+ 090926 704 0.8- 0.0
Ephemeris:
2009 SQ a,e,i = 2.71, 0.86, 34 q = 0.3782
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 05 18 06 02 53.7 -47 55 19 0.5813 1.0261 74.8 72.0 20.4
...
2023 06 02 07 57 53.8 -59 37 33 0.7285 1.2626 91.4 53.4 20.8
...
2023 06 10 09 03 11.5 -62 04 47 0.8249 1.3811 96.7 46.9 21.1
...
2023 06 16 09 49 38.3 -62 44 05 0.9038 1.4667 99.5 43.1 21.3
2023 06 17 09 57 01.0 -62 46 08 0.9175 1.4808 99.8 42.5 21.4
2023 06 18 10 04 16.6 -62 47 06 0.9313 1.4947 100.2 42.0 21.4
...
2023 06 24 10 45 11.3 -62 34 01 1.0173 1.5769 101.7 39.1 21.6
...
2023 07 02 11 32 33.5 -61 42 11 1.1396 1.6829 102.5 36.1 21.9
...
2023 07 17 12 42 47.0 -59 22 31 1.3903 1.8714 100.9 32.2 22.5
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