[Iaude] MPEC U212: 2015 KW120 [a=1.60,e=0.49,i=3.4,H=26.00]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Mon Oct 23 10:22:54 EDT 2023


M.P.E.C. 2023-U212                             Issued 2023 October 23, 14:21 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 KW120                                   


                           Revision to MPEC 2015-K123                           

Additional Observations:
     K15KC0W  C2023 10 18.32679 02 18 37.20 -29 32 23.7          20.7 GVEU212I52
     K15KC0W  C2023 10 18.33746 02 18 34.15 -29 29 26.4          21.1 GVEU212I52
     K15KC0W  C2023 10 18.35877 02 18 28.12 -29 23 32.5          20.9 GVEU212I52
     K15KC0W 0C2023 10 19.48986202 14 39.008-24 37 23.18         21.51GVEU212T12
     K15KC0W 0C2023 10 19.49103002 14 38.740-24 37 06.87         21.22GVEU212T12
     K15KC0W KC2023 10 22.41241102 08 02.994-15 31 13.73         21.13GVEU212V06
     K15KC0W KC2023 10 22.41587502 08 02.544-15 30 42.12         21.72GVEU212V06
     K15KC0W KC2023 10 22.41933802 08 02.058-15 30 10.73         21.05GVEU212V06

Observer details:
I52 Steward Observatory, Mt. Lemmon Station.  Observer G. J. Leonard.
    Measurers E. C. Beshore, 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
    f/2.0 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.
V06 Catalina Sky Survey-Kuiper.  Observer J. B. Fazekas.  Measurers E. C.
    Beshore, 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.  1.55-m reflector +
    1K CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or zero decimals in degrees), reference and Delta-T
231018 I52   72+   15+    231022 V06   55+   20+    MPO409534   +4.88 days

Orbital elements:
2015 KW120                                               Earth MOID = 0.0005 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M   7.97818              (2000.0)            P               Q                  
n   0.48555824     Peri.  245.22257     +0.68724116     +0.72437483             
a   1.6031537      Node    68.30462     -0.64346516     +0.64190965             
e   0.4899658      Incl.    3.36853     -0.33712339     +0.25146194             
P   2.03           H   26.00          G   0.15           U   0                  
Residuals in seconds of arc
150524 703  0.1-  0.7+    150526 E10  0.2-  0.1-    150528 654  0.1-  0.0
150524 703  0.6+  0.6-    150526 E10  0.2-  0.3-    150528 654  0.3+  0.1+
150524 703  0.7+  0.9-    150526 E10  0.2-  0.1-    150528 654  0.0   0.0
150524 703  1.1-  0.3+    150526 E10  0.3-  0.1-    150528 926  0.1+  0.2-
150524 G96  0.4-  0.1+    150526 587  0.2+  0.2+    150528 926  0.3-  0.1+
150524 G96  0.1+  0.2+    150526 587  0.9+  0.7-    150528 926  0.0   0.1-
150524 G96  0.1+  0.2+    150526 G40  0.1+  0.2+    150528 A48  0.2+  0.7+
150524 G96  0.0   0.2+    150526 G40  0.1+  0.0     150528 A48  0.5-  0.0
150524 H01  0.1-  0.1+    150527 W88  0.2+  0.0     150528 A48  0.5-  0.2+
150524 H01  0.1-  0.1+    150527 I52  0.0   0.0     150528 A48  0.1+  0.2-
150524 H01  0.1-  0.1+    150527 I52  0.2+  0.1+    150529 587  1.4-  0.3+
150524 H01  0.0   0.1+    150527 I52  0.2-  0.1+    150529 587  1.7-  0.1-
150524 300  0.1+  1.3-    150527 I52  0.0   0.1+    150529 587  1.4-  0.3-
150524 300  1.1+  0.6-    150527 W88  0.2+  0.0     150529 587 (2.8-  0.7-)
150524 300  0.9+  0.1-    150527 W88  0.5+  0.2-    150529 587  2.2-  0.2+
150524 300  0.3+  0.5-    150527 H21  0.2-  0.1-    150529 926 (5.2-  1.2-)
150524 204  0.0   0.4+    150527 H21  0.2-  0.0     150529 926  0.3-  0.5-
150524 204  0.0   0.3+    150527 H21  0.1-  0.1+    150529 926  2.1+  0.4-
150524 204  0.1-  0.1+    150527 H21  0.2-  0.0     150529 926  0.2+  0.1+
150525 I52  0.3-  0.1-    150527 H21  0.3-  0.1+    150529 926 (4.4-  1.0-)
150525 I52  0.3-  0.3-    150527 H21  0.3-  0.0     150529 926  0.1-  0.5-
150525 I52  0.3+  0.5+    150527 H21  0.2-  0.0     150529 926 (5.0-  1.2-)
150525 I52  0.3-  0.2+    150527 926  0.1+  0.3-    150529 926  1.0-  0.5-
150525 926  0.2+  0.0     150527 926  0.0   0.1+    150529 926 (4.3-  1.0-)
150525 926  0.1+  0.2+    150527 926  0.1-  0.1-    150529 926  1.2-  0.5-
150525 926  0.4+  0.2-    150527 587  0.6+  0.1-    150529 926 (4.2-  0.9-)
150525 673  0.2+  0.6+    150527 587  0.0   0.0     150529 926  1.0+  0.1-
150525 673  0.1-  0.1-    150527 G40  0.2+  0.1+    150529 H21  0.8+  0.4+
150525 673  0.3-  0.4-    150527 G40  0.1-  0.0     150529 H21  0.9+  0.1-
150525 G40  0.0   0.2+    150528 926  0.1+  0.0     150529 H21 (1.4+  0.3-)
150525 G40  0.0   0.1-    150528 926  0.3-  0.1-    150529 H21 (1.6+  0.1-)
150525 G40  0.3-  0.0     150528 926  0.1-  0.1-    150529 926  1.1-  0.3-
150526 V30 (5.1+  0.9+)   150528 654  0.1-  0.0     150529 926  2.1-  0.8-
150526 V30 (5.1+  0.8+)   150528 H21  0.2-  0.3+    150529 926  2.2-  0.6-
150526 V30 (4.7+  0.2-)   150528 H21  0.1-  0.3+    231018 I52  0.1-  0.1+
150526 V30  0.4-  0.4-    150528 H21  0.0   0.3+    231018 I52  0.1-  0.1+
150526 E10  0.1-  0.1-    150528 H21  0.4-  0.4+    231018 I52  0.3+  0.0
150526 E10  0.1-  0.1-    150528 H21  0.1-  0.4+    231019 T12  0.1-  0.2-
150526 E10  0.1-  0.1-    150528 H21  0.2-  0.3+    231019 T12  0.1-  0.1-
150526 E10  0.2-  0.1-    150528 H21  0.3-  0.5+    231022 V06  0.1+  0.0
150526 E10  0.2-  0.0     150528 654  0.2+  0.0     231022 V06  0.2+  0.2+
150526 E10  0.1+  0.1-    150528 926  0.3-  0.2+    231022 V06  0.3-  0.1+
150526 E10  0.3-  0.1-    150528 926  0.5-  0.1-
150526 E10  0.2-  0.0     150528 926  0.2+  0.3-

Ephemeris:
2015 KW120               a,e,i = 1.60, 0.49, 3                   q = 0.8177
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 09 23    13 33 33.1 -30 20 59   0.1533  0.8881    38.1   135.7    28.0
...
2023 10 08    12 22 16.5 -69 06 49   0.05581 0.9760    63.7   113.3    24.1
...
2023 10 16    02 31 14.4 -42 25 17   0.05499 1.0309   126.6    51.0    21.7
...
2023 10 22    02 08 50.3 -16 33 54   0.08832 1.0742   152.0    25.8    22.1
2023 10 23    02 07 08.7 -14 05 35   0.09501 1.0816   154.3    23.5    22.2
2023 10 24    02 05 42.0 -11 56 02   0.1019  1.0890   156.3    21.5    22.3
...
2023 10 30    02 00 11.3 -03 13 59   0.1463  1.1339   162.9    14.9    22.9
...
2023 11 07    01 57 10.4 +02 46 11   0.2119  1.1947   162.1    14.8    23.8
...
2023 11 22    01 58 35.3 +08 20 05   0.3536  1.3089   151.2    21.3    25.4

A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-U212




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