[Iaude] MPEC A68: 2015 KQ57 [a=2.68,e=0.69,i=6.0,H=22.16]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sun Jan 7 09:15:37 EST 2024


M.P.E.C. 2024-A68                               Issued 2024 January 7, 14:14 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

                                   2015 KQ57                                    


                           Revision to MPEC 2015-K79                            

Additional Observations:
     K15K57Q  C2024 01 02.39905006 02 59.604+01 32 07.44         21.03wXEA068F51
     K15K57Q  C2024 01 02.41176606 02 57.922+01 31 52.87         20.93wXEA068F51
     K15K57Q  C2024 01 02.42443506 02 56.240+01 31 38.29         20.89wXEA068F51
     K15K57Q 0C2024 01 05.39944205 56 28.522+00 32 23.99         20.93GVEA068T12
     K15K57Q 0C2024 01 05.40242005 56 28.064+00 32 20.26         20.99GVEA068T12

Observer details:
F51 Pan-STARRS 1, Haleakala.  Observers J. Herman, T. Lowe, P. Minguez, A.
    Schultz, I. Smith.  Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
    Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
    Weryk.  1.8-m Ritchey-Chretien + 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
240102 F51 2.52+ 0.48+    240105 T12 2.67+ 0.59+    MPO782034   +0.56 days

Orbital elements:
2015 KQ57                                                Earth MOID = 0.0457 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M 320.78005              (2000.0)            P               Q                  
n   0.22413720     Peri.   25.25470     -0.99872363     -0.01933887             
a   2.6840674      Node   153.51035     +0.00394279     -0.95082827             
e   0.6915502      Incl.    6.00467     +0.05035442     -0.30911424             
P   4.40           H   22.16          G   0.15           U   1                  
Residuals in seconds of arc
150522 703  1.0+  1.1+    150524 H01  0.1-  0.2+    150528 H21  0.2-  0.4+
150522 703  0.7+  0.2+    150524 H01  0.1-  0.0     150528 H21  0.4-  0.4+
150522 703  0.5-  1.2+    150524 926  0.2+  0.8-    150529 H21  0.8+  1.2+
150522 703  0.8+  0.2+    150524 926  0.5-  0.1-    150529 H21  0.3+  0.1+
150522 703  0.4-  1.2+    150524 926  0.6-  0.0     150529 H21  0.4+  0.7-
150522 703  0.0   0.2-    150524 926  0.0   0.1-    150529 291  0.1+  0.2+
150522 703  1.2+  2.2-    150524 926  0.5+  0.4+    150529 291  0.1+  0.3-
150522 I52  0.4+  0.0     150524 926  0.3+  0.0     150529 291  0.3+  0.5-
150522 I52  0.6+  0.5+    150524 G96  0.2+  0.0     150531 291  0.1+  0.2+
150522 I52  0.2+  0.4+    150524 G96  0.0   0.3+    150531 291  0.2-  0.1+
150522 I52  0.2+  0.4+    150524 G96  0.1+  0.3+    150531 291  0.1+  0.2-
150522 I93  0.0   0.2+    150524 G96  0.0   0.0     150606 291  0.0   0.6-
150522 I93  0.2-  0.3+    150524 448  0.2-  0.1+    150606 291  0.2+  0.2+
150522 I93  0.1+  0.0     150524 448  0.1-  0.3-    150607 H21  0.5-  0.6+
150523 H01  0.2-  0.1+    150524 448  0.2+  0.2+    150607 H21  0.4-  0.1-
150523 H01  0.1-  0.0     150525 926  1.8-  0.7-    150607 H21  0.6+  0.4-
150523 H01  0.2-  0.0     150525 926  0.5-  0.0     150607 G96  0.1+  0.4-
150523 H01  0.2-  0.0     150525 926  0.4+  0.3-    150607 G96  0.2+  0.2-
150523 G96  0.4+  0.2-    150525 I52  0.2-  0.2-    150607 G96  0.2+  0.0
150523 G96  0.3+  0.4+    150525 I52  0.3-  0.2+    150607 G96  0.1+  0.4+
150523 G96  0.1-  0.1+    150525 I52  0.0   0.1+    150618 568  0.0   0.0
150523 G96  0.4-  0.1+    150525 I52  0.1-  0.2-    150618 568  0.0   0.0
150523 926  0.1+  0.0     150527 204  0.1+  0.3+    150619 705  0.3-  0.3+
150523 926  0.1+  0.3+    150527 204  0.1+  0.1-    150619 705  0.1-  0.2-
150523 926  0.1+  0.2+    150527 204  0.0   0.2+    150619 705  0.0   0.0
150523 926  0.3+  0.0     150527 H21  0.2+  0.0     150622 291  0.1+  0.1+
150523 926  0.2+  0.0     150527 H21  0.1-  0.1+    150622 291  0.2+  0.2+
150523 926  0.8+  0.3-    150527 H21  0.1-  0.0     150622 291  0.0   0.3+
150523 926  0.1+  1.9-    150528 291  0.0   0.4-    240102 F51  0.0   0.0
150523 926  0.2+  0.0     150528 291  0.1+  0.3-    240102 F51  0.0   0.0
150523 926  0.5+  0.3+    150528 291  0.1+  0.3-    240102 F51  0.0   0.0
150524 H01  0.3-  0.0     150528 H21  0.2-  0.0     240105 T12  0.0   0.0
150524 H01  0.1-  0.2+    150528 H21  0.0   0.4+    240105 T12  0.0   0.0

Ephemeris:
2015 KQ57                a,e,i = 2.68, 0.69, 6                   q = 0.8279
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 12 08    06 29 39.3 +07 50 24   0.5581  1.5043   153.1    17.2    22.7
...
2023 12 23    06 19 06.6 +04 28 36   0.3858  1.3537   160.6    14.0    21.5
...
2023 12 31    06 07 31.7 +02 16 43   0.3077  1.2736   157.9    16.9    21.0
...
2024 01 06    05 55 03.0 +00 20 00   0.2548  1.2143   152.1    22.3    20.7
2024 01 07    05 52 34.2 -00 01 30   0.2464  1.2045   150.8    23.4    20.6
2024 01 08    05 49 57.3 -00 23 44   0.2382  1.1948   149.5    24.7    20.6
...
2024 01 14    05 30 50.7 -02 56 38   0.1911  1.1371   140.2    33.6    20.2
...
2024 01 22    04 50 22.7 -07 52 04   0.1348  1.0633   122.9    51.0    19.8
...
2024 02 06    00 45 15.6 -25 37 14   0.07165 0.9413    49.7   126.9    21.7

A. U. Tomatic                (C) Copyright 2024 MPC           M.P.E.C. 2024-A68





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