MPEC 2023-N22 : 2004 RJ9
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M.P.E.C. 2023-N22 Issued 2023 July 7, 15:03 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
2004 RJ9
Revision to MPEC 2004-R34
Additional Observations:
K04R09J 1C2023 07 06.40525600 49 08.958+13 52 25.36 19.80GVEN022G96
K04R09J 1C2023 07 06.41094200 49 09.185+13 52 47.89 20.01GVEN022G96
K04R09J 1C2023 07 06.41661900 49 09.408+13 53 10.25 20.28GVEN022G96
K04R09J 1C2023 07 06.42230600 49 09.674+13 53 32.93 20.10GVEN022G96
K04R09J mC2023 07 06.45696400 49 11.125+13 55 50.95 19.75GVEN022I52
K04R09J mC2023 07 06.45980000 49 11.262+13 56 02.18 19.74GVEN022I52
K04R09J mC2023 07 06.46329600 49 11.417+13 56 15.94 20.17GVEN022I52
K04R09J KC2023 07 07.03787200 49 38.215+14 33 52.70 19.3 GVEN022J95
K04R09J KC2023 07 07.05261400 49 38.830+14 34 50.52 20.1 GVEN022J95
K04R09J pC2023 07 07.05949200 49 39.18 +14 35 18.7 20.1 GVEN022L01
K04R09J pC2023 07 07.06159400 49 39.23 +14 35 27.8 20.0 GVEN022L01
K04R09J KC2023 07 07.06744700 49 39.463+14 35 48.80 19.2 GVEN022J95
K04R09J pC2023 07 07.06748600 49 39.55 +14 35 50.7 20.0 GVEN022L01
K04R09J pC2023 07 07.07146900 49 39.65 +14 36 05.8 19.9 GVEN022L01
K04R09J pC2023 07 07.07370100 49 39.71 +14 36 14.9 19.5 GVEN022L01
K04R09J KC2023 07 07.11149 00 49 41.42 +14 39 04.5 20.8 VZEN022M49
K04R09J KC2023 07 07.14557 00 49 42.80 +14 41 18.5 20.3 VZEN022M49
K04R09J KC2023 07 07.17966 00 49 44.09 +14 43 31.9 20.8 VZEN022M49
Observer details:
G96 Mt. Lemmon Survey. Observer G. J. Leonard. 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. 1.5-m reflector + 10K
CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer K. W. Wierzchos.
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. 1.0-m prime focus + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.41-m f/6.3 Schmidt-Cassegrain
+ CCD.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector
+ CCD.
M49 IAS Remote Observatory, Hakos. Observers D. Husar, M. Junius. Measurer
D. Husar. 0.25-m f/4.6 reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or zero decimals in degrees), reference and Delta-T
230706 G96 30- 22- 230707 M49 30- 21- MPO 70397 -123 days
Orbital elements:
2004 RJ9 Earth MOID = 0.0541 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 337.63746 (2000.0) P Q
n 0.20812114 Peri. 341.72068 +0.23805925 +0.91272337
a 2.8200615 Node 300.81862 -0.83589038 +0.01843684
e 0.6268135 Incl. 22.74676 -0.49458575 +0.40816190
P 4.74 H 19.67 G 0.15 U 0
Residuals in seconds of arc
040906 704 0.1- 0.8- 040908 649 0.2+ 0.1- 041008 696 0.2- 0.1-
040906 704 0.1- 0.6- 040908 649 0.1+ 0.0 041008 696 0.3+ 0.4+
040906 704 0.4+ 1.6- 040908 649 0.7+ 0.3- 041010 715 0.2+ 0.9-
040907 704 0.2- 0.6+ 040908 649 0.0 0.1+ 041010 715 0.1- 0.1+
040907 704 0.5+ 0.1+ 040908 673 0.1+ 0.3+ 041010 715 1.0+ 0.3-
040907 704 0.1- 0.7- 040908 673 0.1+ 0.2+ 230706 G96 0.3+ 0.0
040907 704 0.2- 0.1- 040908 673 0.1+ 0.2+ 230706 G96 0.1+ 0.1-
040907 704 0.2+ 0.6+ 040908 673 0.0 0.2+ 230706 G96 0.2- 0.3-
040907 246 0.4- 1.7- 040908 734 0.2- 0.3+ 230706 G96 0.2+ 0.2-
040907 246 0.6- 1.1- 040908 734 0.8- 0.2+ 230706 I52 0.2+ 0.1+
040907 246 0.3- 1.1- 040908 734 0.4+ 0.1- 230706 I52 0.5+ 0.1+
040907 246 0.0 0.3+ 040908 734 0.6+ 0.6+ 230706 I52 0.7+ 0.1-
040907 143 0.4- 0.5- 040909 J95 0.0 0.7+ 230707 J95 0.1- 0.7+
040907 246 0.1- 0.2+ 040909 J95 1.1+ 1.0+ 230707 J95 0.7- 0.5+
040907 246 0.2+ 0.3+ 040909 J95 0.7+ 1.4+ 230707 L01 0.3+ 0.6-
040907 143 0.8- 0.1- 040912 695 0.2+ 0.1+ 230707 L01 0.2- 0.2+
040907 151 0.1- 0.0 040912 671 0.6+ 0.2- 230707 J95 1.0- 0.4+
040907 A17 0.0 0.0 040912 671 0.2+ 0.1- 230707 L01 0.2- 0.6-
040907 151 0.1- 0.0 040912 671 0.4+ 0.1+ 230707 L01 0.7- 0.3-
040907 151 0.3- 0.3- 040923 715 0.6- 0.4- 230707 M49 0.2- 0.0
040907 151 0.1- 0.7- 040923 715 0.8- 0.7- 230707 M49 0.5+ 0.2+
040907 A17 0.6+ 1.1+ 040923 715 1.3- 0.9+ 230707 M49 0.2+ 0.0
040908 649 0.1+ 0.2+ 041008 696 0.2+ 0.6+
Ephemeris:
2004 RJ9 a,e,i = 2.82, 0.63, 23 q = 1.0524
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 06 07 00 13 44.8 -23 55 05 0.4316 1.0549 83.2 72.8 20.5
...
2023 06 22 00 35 00.4 -03 33 57 0.4386 1.0600 83.5 72.3 20.5
...
2023 06 30 00 43 32.5 +06 29 51 0.4545 1.0777 85.1 70.0 20.6
...
2023 07 06 00 48 48.8 +13 25 40 0.4706 1.0973 86.9 67.7 20.6
2023 07 07 00 49 35.7 +14 31 34 0.4736 1.1011 87.3 67.3 20.6
2023 07 08 00 50 20.7 +15 36 27 0.4766 1.1050 87.6 66.8 20.6
...
2023 07 14 00 54 10.6 +21 44 26 0.4960 1.1311 90.0 64.0 20.7
...
2023 07 22 00 57 12.3 +28 58 14 0.5242 1.1725 93.6 59.9 20.8
...
2023 08 06 00 54 44.3 +39 43 18 0.5805 1.2662 101.6 51.7 20.9
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