[Iaude] MPEC O91: 2023 GC2 [a=1.00,e=0.15,i=6.9,H=27.29]

[mpec at cfa.harvard.edu]

M.P.E.C. 2024-O91                                 Issued 2024 July 29, 15:58 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

                                    2023 GC2                                    


                           Revision to MPEC 2023-H07                            

Additional Observations:
     K23G02C KC2024 04 10.18490510 15 57.636+11 52 19.52         20.74GVEO091I52
     K23G02C KC2024 04 10.19185810 16 03.659+11 53 22.20         20.99GVEO091I52
     K23G02C KC2024 04 10.19631010 16 07.504+11 54 02.74         20.68GVEO091I52
     K23G02C 0C2024 04 17.42419411 34 18.814+22 04 50.15         22.82GVEO091T12

Observer details:
I52 Steward Observatory, Mt. Lemmon Station.  Observer G. J. Leonard.
    Measurers T. Beuden, V. F. Carvajal, 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, F. C. Shelly, K. W.
    Wierzchos.  1.0-m prime focus + CCD.
T12 University of Hawaii 88-inch telescope, Maunakea.  Observer D. J. Tholen.
    2.24-m f/10.1 reflector + 2112 x 2112 pixels STA1600 10k CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
240410 I52 1.47- 0.28-    240417 T12 0.99- 0.09-    E2024-EJ0   -0.10 days

Orbital elements:
2023 GC2                                                 Earth MOID = 0.0145 AU
Epoch 2024 Oct. 17.0 TT = JDT 2460600.5                 Veres                   
M 275.56202              (2000.0)            P               Q                  
n   0.98174855     Peri.  254.44662     -0.05620888     -0.99766024             
a   1.0026189      Node   198.90530     +0.95588775     -0.04251782             
e   0.1469497      Incl.    6.89875     +0.28830394     -0.05353761             
P   1.00           H   27.29          G   0.15           U   2                  
Residuals in seconds of arc
230414 G96  0.6+  0.2-    230415 I52  0.5+  0.3+    230416 H01  0.1-  0.0
230414 G96 (0.2-  1.1+)   230415 I52  0.2-  0.1-    230416 V06  0.2-  0.1+
230414 G96  0.5+  0.5+    230415 I52  0.2+  0.8+    230416 V06  0.0   0.2-
230414 G96  0.3-  0.5-    230416 H01  0.2-  0.1+    240410 I52  0.1+  0.1+
230414 I52 (1.5+  0.5-)   230416 H01  0.3-  0.2+    240410 I52  0.0   0.2-
230414 I52  0.5+  0.7-    230416 V06  0.1+  0.0     240410 I52  0.2-  0.2+
230414 I52  0.2-  0.0     230416 H01  0.2-  0.2-    240417 T12  0.0   0.0

Ephemeris:
2023 GC2                 a,e,i = 1.00, 0.15, 7                   q = 0.8553
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 06 29    14 12 08.5 +12 02 31   0.3096  1.1473   107.3    57.8    27.1
...
2024 07 14    14 39 08.0 +07 16 52   0.3635  1.1498   102.2    59.8    27.5
...
2024 07 22    14 54 35.4 +04 44 15   0.3908  1.1482    99.7    60.7    27.7
...
2024 07 28    15 06 39.2 +02 50 52   0.4104  1.1456    97.8    61.4    27.8
2024 07 29    15 08 42.3 +02 32 05   0.4136  1.1450    97.5    61.6    27.9
2024 07 30    15 10 46.1 +02 13 20   0.4168  1.1444    97.1    61.7    27.9
...
2024 08 05    15 23 25.6 +00 21 39   0.4353  1.1403    95.3    62.4    28.0
...
2024 08 13    15 41 03.8 -02 04 12   0.4583  1.1329    92.9    63.3    28.1
...
2024 08 28    16 16 26.9 -06 23 50   0.4956  1.1139    88.6    65.0    28.3

A. U. Tomatic                (C) Copyright 2024 MPC           M.P.E.C. 2024-O91