[Iaude] MPEC R189: 2021 QE2 [a=0.76,e=0.49,i=3.8,H=24.47]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Thu Sep 14 07:51:39 EDT 2023
M.P.E.C. 2023-R189 Issued 2023 September 14, 11:50 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 QE2
Revision to MPEC 2021-Q101
Additional Observations:
K21Q02E C2023 09 07.58645000 46 08.371+20 22 21.00 21.00GVER189F51
K21Q02E C2023 09 07.59829200 46 00.324+20 21 58.20 21.19GVER189F51
K21Q02E C2023 09 07.59829200 46 00.325+20 21 58.20 21.19GVER189F51
K21Q02E C2023 09 10.39237500 15 00.351+18 40 11.12 20.94GVER189F51
K21Q02E C2023 09 10.39237500 15 00.351+18 40 11.10 20.95GVER189F51
K21Q02E 7C2023 09 11.11915500 06 43.180+18 08 22.74 21.2 GVER189Z84
K21Q02E 7C2023 09 11.12774800 06 37.163+18 07 59.30 21.3 GVER189Z84
K21Q02E 7C2023 09 11.13374300 06 32.983+18 07 42.93 20.9 GVER189Z84
K21Q02E 7C2023 09 11.14834300 06 22.742+18 07 02.53 21.3 GVER189Z84
K21Q02E 7C2023 09 11.15518500 06 17.966+18 06 43.65 21.1 GVER189Z84
K21Q02E C2023 09 11.33459300 04 22.865+17 58 57.88 20.93GVER189F51
K21Q02E C2023 09 11.33459300 04 22.865+17 58 57.86 20.95GVER189F51
K21Q02E C2023 09 11.34617300 04 14.725+17 58 27.45 20.70GVER189F51
K21Q02E C2023 09 11.34617300 04 14.726+17 58 27.45 20.70GVER189F51
K21Q02E C2023 09 11.35775600 04 06.587+17 57 57.05 20.80GVER189F51
K21Q02E C2023 09 11.35775600 04 06.588+17 57 57.05 20.79GVER189F51
K21Q02E C2023 09 11.36938000 03 58.415+17 57 26.12 20.71GVER189F51
K21Q02E C2023 09 11.36938000 03 58.414+17 57 26.12 20.71GVER189F51
K21Q02E C2023 09 12.98583 23 45 44.44 +16 39 07.3 20.2 GVER189K88
K21Q02E C2023 09 12.99028 23 45 41.33 +16 38 53.4 20.5 GVER189K88
K21Q02E KC2023 09 13.00529023 45 31.05 +16 38 08.6 20.4 RoER189K88
K21Q02E KC2023 09 13.00857223 45 28.77 +16 37 58.7 20.5 RoER189K88
K21Q02E KC2023 09 13.01185523 45 26.46 +16 37 48.0 20.3 RoER189K88
K21Q02E 1C2023 09 13.07678 23 44 42.27 +16 34 25.1 20.9 VXER189033
K21Q02E 1C2023 09 13.07770 23 44 41.65 +16 34 22.0 21.0 VXER189033
K21Q02E 1C2023 09 13.07862 23 44 41.01 +16 34 19.6 20.9 VXER189033
K21Q02E 6C2023 09 13.12577223 44 08.810+16 32 10.47 21.0 GVER189Z84
K21Q02E 6C2023 09 13.13716923 44 00.980+16 31 35.11 21.0 GVER189Z84
K21Q02E 6C2023 09 13.14855923 43 53.151+16 30 59.12 20.9 GVER189Z84
K21Q02E KC2023 09 13.15866623 43 51.85 +16 30 28.0 20.6 VuER189H21
K21Q02E KC2023 09 13.16146523 43 49.91 +16 30 19.6 20.5 VuER189H21
K21Q02E KC2023 09 13.16426323 43 47.96 +16 30 11.2 21.2 VuER189H21
K21Q02E KC2023 09 13.16612923 43 46.68 +16 30 05.3 21.2 VuER189H21
K21Q02E KC2023 09 13.17317 23 43 42.33 +16 29 43.9 20.8 GVER189H36
K21Q02E KC2023 09 13.19455 23 43 27.61 +16 28 39.9 20.6 GVER189H36
K21Q02E !C2023 09 13.30887 23 42 09.69 +16 22 53.4 20.9 RVER189673
K21Q02E !C2023 09 13.32267 23 42 00.12 +16 22 11.2 VER189673
K21Q02E C2023 09 14.34596923 30 46.722+15 28 29.56 20.83wXER189F52
K21Q02E C2023 09 14.35747823 30 38.888+15 27 53.10 21.06wXER189F52
K21Q02E C2023 09 14.36900623 30 31.027+15 27 16.38 20.98wXER189F52
K21Q02E C2023 09 14.38057523 30 23.127+15 26 39.40 21.03wXER189F52
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers S. Melnikov, C.
Hoegner, F. Ludwig, M. Hartmann, B. Stecklum. Measurer B. Stecklum.
1.34-m f/3 Schmidt + CCD.
673 Table Mountain Observatory, Wrightwood. Observer J. Pittichova. 1.0-m
f/15 reflector + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, P.
Minguez, A. Schultz, I. Smith. Measurers S. Chastel, J. Fairlamb, M.
Huber, Y. Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien +
CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, T. Lowe, P. Minguez, A.
Schultz, I. Smith. Measurers K. Chambers, T. de Boer, J. Bulger, J.
Fairlamb, H. Gao, M. Huber, C.-C. Lin, T. Lowe, E. Magnier, P. Minguez, Y.
Ramanjooloo, A. Schultz, I. Smith, R. Wainscoat, R. Weryk. 1.8-m Ritchey-
Chretien + CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers T. Linder, R. Holmes, L. Horn. 0.76-m f/3.0 astrograph + CCD.
H36 Sandlot Observatory, Scranton. Observer G. Hug. .57 meter f/4.2 + CCD.
K88 GINOP-KHK, Piszkesteto. Observer K. Sarneczky. 0.60-m Schmidt + CCD.
Z84 Calar Alto-Schmidt. Observers R. Kresken, F. Ocana, M. Micheli, L.
Conversi. 0.8-m f/3 Schmidt + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
230907 F51 0.47- 0.14- 230914 F52 0.59- 0.26- MPO750185 -0.09 days
Orbital elements:
2021 QE2 Earth MOID = 0.0070 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Veres
M 160.46910 (2000.0) P Q
n 1.50218756 Peri. 213.96344 -0.99905801 -0.02004825
a 0.7550689 Node 324.82663 +0.03515613 -0.89384626
e 0.4879643 Incl. 3.83077 -0.02543909 -0.44792515
P 0.66 H 24.47 G 0.15 U 2
Residuals in seconds of arc
210830 T08 0.5+ 0.2- 210831 E23 1.0+ 0.6+ 230910 F51 0.2+ 0.1-
210830 T08 0.2- 0.3+ 210831 E23 0.1+ 0.1- 230911 Z84 0.1- 0.0
210830 T08 0.6- 0.3- 210831 N51 0.1- 0.4- 230911 Z84 0.1+ 0.1+
210830 T08 0.0 0.3+ 210831 N51 0.4+ 0.5+ 230911 Z84 0.4+ 0.2+
210830 104 0.9- 0.3- 210831 C82 1.1- 0.4+ 230911 Z84 0.1+ 0.0
210830 104 0.3- 0.2+ 210831 A17 0.8+ 0.4- 230911 Z84 0.2+ 0.0
210830 104 0.4- 0.2- 210831 A17 0.2+ 0.6- 230911 F51 0.2+ 0.0
210830 203 0.4- 0.5+ 210831 C82 0.2+ 0.4+ 230911 F51 0.2- 0.0
210830 203 0.1- 0.3+ 210831 A17 0.4+ 0.3+ 230911 F51 0.3- 0.1+
210830 K78 0.2+ 0.1+ 210831 C82 0.4- 1.3- 230911 F51 0.2- 0.1-
210830 K78 0.7+ 0.1+ 210831 033 0.1- 0.0 230912 K88 0.1- 0.3-
210830 595 0.4+ 0.2- 210831 033 0.2- 0.2- 230912 K88 0.5- 0.6-
210830 K78 0.2- 0.1+ 210831 A57 0.2- 0.1- 230913 K88 1.0+ 0.2+
210830 203 0.3+ 0.0 210831 033 0.0 0.1- 230913 K88 0.8+ 0.3+
210830 595 0.3- 0.5- 210831 033 0.0 0.3- 230913 K88 0.2+ 0.3-
210830 587 0.2+ 0.2- 210831 033 0.1- 0.1- 230913 033 0.1- 0.1-
210830 587 0.3- 0.4- 210831 A57 0.0 0.1- 230913 033 0.0 0.3-
210830 L01 0.1- 0.8- 210831 A57 0.5- 0.5+ 230913 033 0.1- 0.1+
210830 L01 0.9- 0.7+ 210902 033 0.1- 0.4+ 230913 Z84 0.0 0.1-
210830 958 0.5+ 0.0 210902 033 0.2+ 0.1- 230913 Z84 0.3+ 0.2+
210830 958 0.9+ 0.9- 210902 033 0.3+ 0.1+ 230913 Z84 0.3+ 0.0
210830 958 0.5+ 0.1+ 210902 033 0.2+ 0.2+ 230913 H21 0.1+ 0.1+
210831 L74 0.3+ 0.6+ 210907 291 0.6+ 0.0 230913 H21 0.0 0.1+
210831 L74 1.2+ 0.8- 210907 291 0.1+ 0.2- 230913 H21 0.3- 0.1+
210831 858 0.1+ 0.1+ 210907 291 0.0 0.1- 230913 H21 0.2- 0.2-
210831 858 0.1- 0.1+ 210910 691 0.1- 0.1- 230913 H36 0.1+ 0.2+
210831 858 0.3- 0.0 210910 691 0.2- 0.3- 230913 H36 0.5+ 0.5+
210831 858 0.2- 0.0 210910 691 0.3+ 0.1- 230913 673 4.9- 1.6-
210831 858 0.1+ 0.2- 210914 807 0.1+ 0.1- 230913 673 4.7- 1.4-
210831 734 0.1+ 0.7+ 210914 807 0.1- 0.1+ 230914 F52 0.0 0.1-
210831 734 0.0 0.2- 210914 807 0.3- 0.2+ 230914 F52 0.1+ 0.0
210831 734 0.2- 0.4- 230907 F51 0.0 0.1- 230914 F52 0.1+ 0.0
210831 E23 1.3+ 0.3+ 230907 F51 0.0 0.1- 230914 F52 0.1+ 0.1-
Ephemeris:
2021 QE2 a,e,i = 0.76, 0.49, 4 q = 0.3866
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 08 15 03 25 40.6 +21 28 56 0.1890 1.0212 87.1 82.2 23.8
...
2023 08 30 02 06 53.9 +22 35 10 0.1368 1.0816 118.4 55.2 22.3
...
2023 09 07 00 52 31.5 +20 39 45 0.1182 1.1028 141.4 34.8 21.5
...
2023 09 13 23 45 36.1 +16 39 07 0.1146 1.1138 158.4 19.4 21.0
2023 09 14 23 34 31.7 +15 47 12 0.1151 1.1153 160.4 17.6 20.9
2023 09 15 23 23 40.1 +14 53 03 0.1159 1.1166 161.7 16.4 20.9
...
2023 09 21 22 25 50.2 +09 12 11 0.1272 1.1221 156.5 20.9 21.3
...
2023 09 29 21 33 00.3 +02 46 10 0.1554 1.1230 138.4 36.3 22.2
...
2023 10 14 20 48 25.6 -04 02 34 0.2263 1.1049 112.7 56.4 23.5
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-R189
More information about the Iaude
mailing list