MPEC 2023-R95 : 2019 QK4
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M.P.E.C. 2023-R95 Issued 2023 September 10, 12:50 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@CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2019 QK4
Revision to MPEC 2019-Q115
Additional Observations:
K19Q04K C2023 09 08.31092521 19 31.360+09 41 09.51 22.02wXER095F51
K19Q04K C2023 09 08.31979321 19 29.246+09 41 08.13 21.94wXER095F51
K19Q04K C2023 09 08.32842421 19 27.171+09 41 06.63 21.88wXER095F51
K19Q04K C2023 09 08.33714921 19 25.104+09 41 05.49 21.76wXER095F51
K19Q04K C2023 09 08.50975921 18 43.843+09 40 35.46 VER095F51
K19Q04K C2023 09 08.51057721 18 43.675+09 40 35.34 21.27GVER095F51
K19Q04K KC2023 09 10.12792021 12 20.53 +09 35 16.5 22.1 VuER095H21
K19Q04K KC2023 09 10.13633721 12 18.49 +09 35 14.6 22.0 VuER095H21
K19Q04K KC2023 09 10.13951521 12 17.957+09 35 14.57 22.17GVER095V06
K19Q04K KC2023 09 10.14227021 12 17.284+09 35 13.70 21.59GVER095V06
K19Q04K KC2023 09 10.14419321 12 16.55 +09 35 12.4 21.7 VuER095H21
K19Q04K KC2023 09 10.14502421 12 16.610+09 35 13.56 21.72GVER095V06
K19Q04K KC2023 09 10.14777621 12 15.948+09 35 12.70 21.30GVER095V06
K19Q04K 3C2023 09 10.23925321 11 54.164+09 34 54.67 21.67GVER095T14
K19Q04K 3C2023 09 10.24023121 11 53.924+09 34 54.45 21.65GVER095T14
K19Q04K 3C2023 09 10.24121021 11 53.686+09 34 54.23 21.66GVER095T14
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, P. Minguez, A.
Schultz, I. Smith, K. Chambers. 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, S.
Chastel. 1.8-m Ritchey-Chretien + CCD.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers T. Linder, R. Holmes, L. Horn. 0.81-m f/4.0 astrograph + CCD.
T14 Canada-France-Hawaii Telescope, Maunakea. Observers R. Wainscoat, L.
Wells, T. Burdullis. Measurers R. Weryk, R. Wainscoat. 3.6-m Canada-
France-Hawaii Telescope + CCD.
V06 Catalina Sky Survey-Kuiper. Observer J. B. Fazekas. Measurers E. J.
Christensen, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
H. Groeller, J. K. Hogan, R. A. Kowalski, S. M. Larson, G. J. Leonard, D.
Rankin, R. L. Seaman, A. Serrano, F. C. Shelly, K. W. Wierzchos. 1.55-m
reflector + 1K CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
230908 F51 0.36- 1.24- 230910 T14 0.26- 1.27- MPO750185 -2.15 days
Orbital elements:
2019 QK4 Earth MOID = 0.2660 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Veres
M 340.78572 (2000.0) P Q
n 0.24152049 Peri. 170.08961 -0.48538887 -0.83074567
a 2.5536815 Node 308.39824 +0.77646729 -0.26633765
e 0.8868963 Incl. 20.34738 +0.40186589 -0.48880046
P 4.08 H 20.70 G 0.15 U 1
Residuals in seconds of arc
190827 G96 0.1+ 0.1- 190902 I52 0.2+ 0.2- 190920 H21 0.4+ 0.6+
190827 G96 0.2+ 0.0 190905 H21 0.2- 0.0 190920 I52 0.0 0.3-
190827 G96 0.7+ 0.1+ 190905 H21 0.3- 0.2+ 190920 I52 0.3+ 0.1+
190827 G96 0.3- 0.0 190905 H21 0.0 0.2+ 190920 I52 0.0 0.1-
190827 G96 0.0 0.0 190905 H21 0.0 0.2+ 190922 I52 0.6+ 0.0
190827 G96 0.0 0.1+ 190906 H21 0.4+ 0.1+ 190922 I52 0.3- 0.6+
190827 G96 0.0 0.0 190906 H21 0.2+ 0.0 190922 I52 0.5- 0.5-
190827 G96 0.2+ 0.4+ 190906 H21 0.2+ 0.1+ 230908 F51 0.0 0.2-
190828 H21 0.8- 0.1- 190906 I52 0.3+ 0.0 230908 F51 0.1+ 0.2-
190828 H21 0.8- 0.5- 190906 I52 0.1+ 0.0 230908 F51 0.1- 0.3-
190828 H21 0.4- 0.1- 190906 I52 0.1- 0.5- 230908 F51 0.2+ 0.0
190828 H21 0.4- 0.1- 190906 I52 0.2+ 0.0 230908 F51 0.3- 0.1-
190829 658 0.4- 1.1+ 190918 I52 0.2- 0.1+ 230908 F51 0.1+ 0.1-
190829 658 0.3- 0.7+ 190918 I52 0.3- 0.1- 230910 H21 0.5+ 0.9+
190829 658 0.2- 0.7+ 190918 I52 0.2- 0.4- 230910 H21 0.7+ 0.8+
190829 658 0.1- 0.7+ 190918 I52 0.3- 0.6- 230910 V06 0.0 0.1+
190829 658 0.4- 0.7+ 190918 G96 0.1- 0.6+ 230910 V06 0.0 0.2-
190829 H21 0.3+ 0.0 190918 G96 0.4+ 0.2+ 230910 H21 0.3+ 0.3+
190829 H21 0.3+ 0.0 190918 G96 0.0 0.4+ 230910 V06 0.0 0.2+
190829 H21 0.0 0.1- 190920 H21 0.1+ 0.3+ 230910 V06 0.1+ 0.0
190902 I52 0.0 0.0 190920 H21 0.1+ 0.1+ 230910 T14 0.0 0.1-
190902 I52 0.0 0.2- 190920 H21 0.3+ 0.4+ 230910 T14 0.1- 0.1-
190902 I52 0.1- 0.1+ 190920 H21 0.4+ 0.3+ 230910 T14 0.0 0.1-
Ephemeris:
2019 QK4 a,e,i = 2.55, 0.89, 20 q = 0.2888
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 08 11 22 40 04.9 +08 22 59 1.0920 2.0297 149.1 14.9 23.3
...
2023 08 26 22 05 24.5 +09 37 14 0.8672 1.8482 159.5 11.0 22.4
...
2023 09 03 21 39 23.5 +09 48 55 0.7759 1.7459 155.8 13.7 22.1
...
2023 09 09 21 16 49.1 +09 39 11 0.7221 1.6663 148.5 18.4 22.1
2023 09 10 21 12 51.2 +09 35 50 0.7144 1.6529 147.0 19.4 22.0
2023 09 11 21 08 50.5 +09 31 59 0.7070 1.6393 145.5 20.4 22.0
...
2023 09 17 20 44 03.6 +08 58 22 0.6701 1.5563 135.6 26.9 22.0
...
2023 09 25 20 10 35.6 +07 48 48 0.6385 1.4411 121.2 36.6 22.0
...
2023 10 10 19 13 09.0 +04 55 14 0.6163 1.2093 94.0 55.5 22.1
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-R95
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