[Iaude] MPEC X225: 2019 AR4 [a=2.15,e=0.54,i=4.5,H=21.2]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Tue Dec 14 09:06:31 EST 2021
M.P.E.C. 2021-X225 Issued 2021 December 14, 14:05 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. 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
2019 AR4
Revision to MPEC 2019-A104
Additional Observations:
K19A04R KC2021 12 12.30697305 22 06.78 +17 25 49.4 22.59GVEX225V06
K19A04R KC2021 12 12.31332505 22 06.40 +17 25 49.5 VEX225V06
K19A04R KC2021 12 12.31967905 22 05.50 +17 25 49.6 22.08GVEX225V06
K19A04R KC2021 12 12.32603505 22 04.83 +17 25 49.4 22.62GVEX225V06
K19A04R KC2021 12 13.25524805 20 32.67 +17 25 39.1 22.15GVEX225V06
K19A04R KC2021 12 13.26160005 20 32.00 +17 25 39.1 22.04GVEX225V06
K19A04R KC2021 12 13.26795105 20 31.33 +17 25 39.0 22.28GVEX225V06
K19A04R KC2021 12 13.27430205 20 30.69 +17 25 38.7 22.13GVEX225V06
Observer details:
V06 Catalina Sky Survey-Kuiper. Observer D. C. Fuls. Measurers E. J.
Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H.
Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, D. Rankin, R. L.
Seaman, 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
211212 V06 0.14- 0.01- 211213 V06 0.14- 0.01- MPO477910 +1149 days
Orbital elements:
2019 AR4 Earth MOID = 0.0673 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5 Veres
M 326.22849 (2000.0) P Q
n 0.31309567 Peri. 73.01662 -0.98120662 +0.17980337
a 2.1479195 Node 117.29467 -0.19295410 -0.91143856
e 0.5368551 Incl. 4.51988 -0.00150905 -0.37006824
P 3.15 H 21.25 G 0.15 U 0
Residuals in seconds of arc
190103 F51 0.1+ 0.0 190209 703 0.5+ 0.1+ 190429 807 0.1+ 0.4+
190103 F51 0.1+ 0.0 190209 703 0.0 0.4+ 190429 807 0.1- 0.2+
190103 F51 0.0 0.0 190209 703 0.6+ 0.1+ 190429 807 0.5- 0.2-
190103 F51 0.2+ 0.1+ 190212 703 0.5- 0.5- 190501 691 0.2- 0.3-
190104 568 0.0 0.0 190212 703 1.0- 0.2+ 190501 691 0.5- 0.3+
190104 568 0.0 0.0 190212 703 0.4- 0.1+ 190501 691 0.3+ 0.2-
190104 568 0.1- 0.0 190212 G96 0.0 0.0 190530 V06 0.3+ 0.0
190106 568 0.1+ 0.0 190212 G96 0.2+ 0.0 190530 V06 0.1+ 0.1+
190106 568 0.0 0.0 190212 G96 0.1+ 0.5- 190530 V06 (1.1+ 0.7+)
190106 568 0.0 0.0 190212 G96 0.0 0.0 190530 V06 0.2+ 0.5+
190107 L01 0.3+ 0.0 190227 C51 0.2- 0.8- 190530 F51 0.1+ 0.2+
190107 L01 0.0 0.5+ 190227 C51 0.9- 0.5- 190530 F51 0.1- 0.1+
190107 L01 0.0 0.2+ 190227 C51 0.1- 0.1+ 190623 807 (0.9+ 0.8-)
190109 807 0.1- 0.5- 190227 C51 1.3- 0.8+ 190623 807 (0.5+ 0.8-)
190109 807 0.0 0.2- 190228 C51 0.0 0.1- 190623 807 (0.7+ 0.6-)
190109 807 0.2+ 0.1+ 190228 C51 0.6+ 0.3+ 190628 V06 0.0 0.2-
190119 G96 0.1- 0.0 190228 C51 0.6+ 0.1+ 190628 V06 0.0 0.0
190119 G96 0.1- 0.4- 190228 C51 1.3- 1.2+ 190628 V06 0.2- 0.1-
190119 G96 (0.8+ 0.5-) 190228 C51 0.3- 0.0 190628 V06 0.3+ 0.1-
190119 G96 0.4- 0.2+ 190301 711 0.0 0.1- 211212 V06 0.0 0.3-
190119 I52 (0.5- 0.9-) 190301 711 0.5+ 0.1+ 211212 V06 (3.9+ 0.0 )
190119 I52 (0.3+ 1.0-) 190301 711 0.1- 0.0 211212 V06 0.3+ 0.1+
190119 I52 0.1- 0.7+ 190405 T12 0.0 0.0 211212 V06 0.1- 0.0
190119 I52 0.5- 0.7+ 190405 T12 0.1- 0.0 211213 V06 0.1+ 0.1+
190201 711 0.9+ 0.3+ 190405 T12 0.0 0.0 211213 V06 0.1- 0.2+
190201 711 0.6+ 0.2+ 190428 807 0.2- 0.2- 211213 V06 0.3- 0.1+
190201 711 0.7+ 0.1- 190428 807 0.2+ 0.1- 211213 V06 0.1- 0.2-
Ephemeris:
2019 AR4 a,e,i = 2.15, 0.54, 5 q = 0.9948
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2021 11 14 05 53 00.8 +17 47 28 1.1852 2.0622 142.8 16.8 24.1
...
2021 11 29 05 40 56.2 +17 32 25 1.0047 1.9621 160.4 9.7 23.4
...
2021 12 07 05 30 24.8 +17 27 36 0.9290 1.9071 170.0 5.1 22.9
...
2021 12 13 05 20 58.1 +17 25 44 0.8829 1.8651 174.3 3.0 22.6
2021 12 14 05 19 17.6 +17 25 35 0.8762 1.8581 174.1 3.1 22.6
2021 12 15 05 17 35.6 +17 25 29 0.8696 1.8510 173.6 3.4 22.6
...
2021 12 21 05 07 01.8 +17 25 56 0.8360 1.8084 167.1 7.0 22.7
...
2021 12 29 04 52 40.5 +17 29 55 0.8053 1.7507 156.2 13.1 22.8
...
2022 01 13 04 29 28.8 +17 53 03 0.7850 1.6406 135.9 24.7 22.9
A. U. Tomatic (C) Copyright 2021 MPC M.P.E.C. 2021-X225
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