[Iaude] MPEC C94: 2018 CY2 [a=1.13,e=0.18,i=26.5,H=22.39]

mpec at cfa.harvard.edu mpec at cfa.harvard.edu
Fri Feb 9 08:46:30 EST 2024


M.P.E.C. 2024-C94                              Issued 2024 February 9, 13:44 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

                                    2018 CY2                                    


                           Revision to MPEC 2018-C87                            

Additional Observations:
     K18C02Y  C2024 02 08.51060411 34 32.254-14 50 03.52         19.19cVEC094T05
     K18C02Y  C2024 02 08.51259411 34 33.367-14 49 34.79         18.31cVEC094T05
     K18C02Y  C2024 02 08.51576311 34 35.105-14 48 50.04         18.60cVEC094T05
     K18C02Y  C2024 02 08.52119111 34 38.105-14 47 33.40         19.15cVEC094T05
     K18C02Y KB2024 02 08.93005 11 38 50.57 -13 07 55.8          19.0 GXEC094M45
     K18C02Y KB2024 02 08.93364 11 38 52.68 -13 07 02.2          18.9 GXEC094M45
     K18C02Y KB2024 02 08.93698 11 38 54.66 -13 06 12.1          18.7 GXEC094M45
     K18C02Y  C2024 02 09.01205 11 39 40.14 -12 44 47.0          18.2 GVEC094M28
     K18C02Y  C2024 02 09.01407 11 39 41.33 -12 44 16.1          18.1 GVEC094M28
     K18C02Y  C2024 02 09.01612 11 39 42.53 -12 43 45.0          18.3 GVEC094M28
     K18C02Y KB2024 02 09.34472 11 43 13.92 -11 19 07.0          18.7 GVEC094734
     K18C02Y KB2024 02 09.35833 11 43 22.33 -11 15 24.9          18.7 GVEC094734
     K18C02Y KB2024 02 09.36507 11 43 26.48 -11 13 35.5          17.7 GVEC094734
     K18C02Y KB2024 02 09.37181 11 43 30.65 -11 11 45.0          18.4 GVEC094734

Observer details:
734 Farpoint Observatory, Eskridge.  Observers D. Cromer, G. Hug, D. Goodin,
    R. Valentine.  Measurer D. Cromer.  0.69-m f/3.54 reflector + CMO.
M28 Lesedi Telescope-SAAO Observatory, Sutherland.  Observers N. Erasmus, S.
    Potter, C. van Gend, S. Chandra, H. Worters.  Measurers T. Ngwane, N.
    Erasmus.  1.0-m f/8 Reflector + CCD.
M45 Starhopper Observatory, Sfantu Gheorghe.  Observer F. Ursache.  0.41-m
    f/7.5 reflector + CMO.
T05 ATLAS-HKO, Haleakala.  Observers L. Denneau, R. Siverd, J. Tonry, H.
    Weiland.  Measurers L. Denneau, N. Erasmus, A. Fitzsimmons, A. Lawrence,
    J. Robinson, R. Siverd, J. Tonry, H. Weiland.  0.5-m Reflector + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
240208 T05 5.36- 1.03-    240209 734 5.67- 0.98-    MPO782475   -0.46 days

Orbital elements:
2018 CY2                                                 Earth MOID = 0.0440 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M 181.58444              (2000.0)            P               Q                  
n   0.82167431     Peri.   73.41996     -0.73474223     +0.62553569             
a   1.1289367      Node   144.01679     -0.65308332     -0.75689532             
e   0.1840864      Incl.   26.52694     +0.18340129     -0.18924739             
P   1.20           H   22.39          G   0.15           U   0                  
Residuals in seconds of arc
180209 703  0.3-  0.5-    180211 I52  0.1-  0.2-    180213 P93  0.0   0.1-
180209 703  0.1-  0.1+    180211 I52  0.1+  0.1+    180213 P93  0.2-  0.3-
180209 703  0.4-  0.3+    180211 I52  0.2-  0.2-    180213 108  0.2+  0.0
180209 703  0.3+  1.3+    180211 I52  0.2+  0.1+    180213 108  0.5-  0.4-
180209 I52  0.1-  0.2+    180211 474  0.3-  0.4-    180213 108  0.4+  0.1-
180209 I52  0.2-  0.1+    180211 474  0.0   0.2-    180214 J95  0.2+  0.2-
180209 I52  0.0   0.2-    180211 474  0.5-  0.5-    180214 J95  0.0   0.2-
180209 I52  0.0   0.1-    180211 474  0.2-  0.0     180214 J95  0.1+  0.1-
180209 I52  0.0   0.1-    180211 474  0.5+  0.2-    180214 J95  0.1-  0.1-
180209 I52  0.1-  0.1-    180211 718  1.1-  1.5-    180214 K61  0.2-  1.0+
180209 I52  0.1+  0.0     180211 718  0.4-  0.1+    180214 K61  0.3-  1.3+
180209 I52  0.1+  0.1+    180211 718  0.3-  0.7-    180214 K61  0.4-  1.1+
180209 104  0.1-  0.1+    180211 718  0.6-  0.5-    180214 K61  0.4-  1.2+
180209 104  0.0   0.1+    180211 718  0.7-  0.5-    180215 P93  0.4+  0.6+
180209 104  0.0   0.1+    180211 718  0.5-  1.5-    180215 P93  0.1+  0.6+
180209 K65  0.3+  0.0     180211 718  0.5-  0.5-    180215 P93  0.7+  0.7+
180209 K65  0.0   0.1+    180211 T08  0.2+  0.1-    180215 P93  0.5+  0.8+
180210 K65  0.0   0.1+    180211 T08  0.0   0.1-    180215 J69  0.6+  1.1+
180210 595  0.2+  0.1-    180211 T08  0.0   0.1-    180215 J69  0.4+  0.8+
180210 595  0.2+  0.3-    180211 474  0.1-  0.2-    180215 J69  0.6+  1.0+
180210 J95  0.1+  0.2+    180211 474  0.3-  0.0     180215 J69  0.7+  0.7+
180210 J95  0.0   0.4+    180211 474  0.0   0.1+    180215 J69  0.5+  0.8+
180210 595  0.0   0.0     180211 474  0.1+  0.1-    180215 J69  0.6+  0.9+
180210 J95  0.3+  0.2+    180211 T08  0.0   0.1-    180216 J95  0.0   0.2-
180210 I52  0.1+  0.2+    180211 474  0.1-  0.1-    180216 J95  0.0   0.3-
180210 I52  0.3+  0.0     180212 Z80  0.5-  1.2+    180216 J95  0.0   0.3-
180210 I52  0.2-  0.2+    180212 Z80  0.1+  0.1+    180218 I52  0.6-  0.1-
180210 I52  0.4+  0.1+    180212 Z80  1.0+  0.2-    180218 I52  0.1-  0.1+
180210 H06  0.7+  0.4+    180212 Z80  0.8-  0.1-    180218 I52  0.1-  0.3-
180210 H06  0.5+  0.0     180212 Z80  0.3-  0.3+    180218 I52  0.4-  0.4-
180210 H06  0.7+  0.1+    180212 Z80  0.5-  0.1+    180222 I52  0.1+  0.4-
180210 587  0.1+  0.0     180212 Z80  0.9-  0.5+    180222 I52  0.3-  0.0
180210 587  0.1+  0.0     180212 Z80  0.5-  0.2-    180222 I52  0.2+  0.0
180210 587  0.1+  0.0     180212 J95  0.3-  0.0     180223 I52  0.1+  0.1+
180210 B49  0.0   0.5-    180212 Z80  0.6+  0.1+    180223 I52  0.0   0.4-
180210 B49  0.3+  0.4+    180212 J95  0.2-  0.1-    180223 I52  0.2-  0.3+
180210 B49  0.3+  0.1+    180212 J95  0.1-  0.1+    180223 I52  0.0   0.1-
180211 K63 (1.1-  1.0-)   180212 T08  0.1-  0.3-    240208 T05  0.1+  0.1-
180211 K63  1.3-  0.2-    180212 T08  0.0   0.2-    240208 T05  0.4+  0.5+
180211 K63  0.1+  0.8-    180212 T08  0.0   0.0     240208 T05  0.3+  0.4+
180211 L06  0.2+  0.8-    180212 T08 (1.4-  2.0-)   240208 T05  0.3+  0.1+
180211 203  0.1+  0.3-    180212 G34  0.3-  0.9-    240208 M45  0.6+  1.5+
180211 203  0.1+  0.1-    180212 G34  0.0   0.4-    240208 M45  0.1+  0.8+
180211 203  0.1+  0.3-    180212 G34  0.1+  0.1-    240208 M45  0.1-  0.3+
180211 204  0.0   0.0     180213 X31 (0.9+  2.6+)   240209 M28  0.1-  0.6+
180211 L06  0.3+  0.0     180213 X31 (0.2+  2.6+)   240209 M28  0.1-  0.3+
180211 204  0.2-  0.1+    180213 X31 (0.5+  2.5+)   240209 M28  0.2-  0.1-
180211 204  0.1-  0.0     180213 408 (3.4+  0.8+)   240209 734  0.1-  0.3-
180211 204  0.1-  0.1-    180213 408 (2.8+  0.8+)   240209 734  0.0   0.1+
180211 204  0.0   0.0     180213 408  0.5-  1.7+    240209 734  0.2-  0.5-
180211 W88  0.0   0.0     180213 408  0.8-  0.8+    240209 734  0.1-  0.2-
180211 W88  0.3-  0.0     180213 P93  0.4-  0.1+
180211 W88  0.0   0.1-    180213 P93  0.1-  0.3-

Ephemeris:
2018 CY2                 a,e,i = 1.13, 0.18, 27                  q = 0.9211
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2024 01 10    09 45 29.3 -39 19 22   0.3196  1.1332   110.0    54.6    22.2
...
2024 01 25    10 16 58.2 -36 55 46   0.1921  1.0880   118.0    53.0    20.9
...
2024 02 02    10 47 44.9 -30 25 56   0.1259  1.0638   125.7    48.8    19.9
...
2024 02 08    11 29 35.1 -16 44 37   0.08167 1.0459   135.3    41.6    18.7
2024 02 09    11 39 30.7 -12 48 44   0.07547 1.0430   137.0    40.1    18.5
2024 02 10    11 50 39.3 -08 10 08   0.06985 1.0401   138.6    38.9    18.2
...
2024 02 16    13 33 50.1 +32 52 34   0.05736 1.0228   126.3    51.1    18.1
...
2024 02 24    17 04 27.5 +60 18 26   0.09859 1.0008    93.8    80.6    20.2
...
2024 03 10    19 46 47.6 +59 16 07   0.2125  0.9645    76.1    91.5    22.2

A. U. Tomatic                (C) Copyright 2024 MPC           M.P.E.C. 2024-C94




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