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  • MPEC 2024-C84 : 2017 CN1

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    M.P.E.C. 2024-C84                              Issued 2024 February 8, 14:08 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
    
                                    2017 CN1                                 
    
    
                               Revision to MPEC 2017-C60                            
    
    Additional Observations:
         K17C01N KC2024 02 05.53188213 29 22.016+11 28 33.35         21.42GVEC084I52
         K17C01N KC2024 02 05.53598113 29 22.837+11 28 31.91         20.81GVEC084I52
         K17C01N KC2024 02 05.53883913 29 23.363+11 28 31.55         21.42GVEC084I52
         K17C01N 0C2024 02 06.65782213 33 09.219+11 24 07.33         20.94GVEC084T12
         K17C01N 0C2024 02 06.66040113 33 09.731+11 24 06.71         20.90GVEC084T12
         K17C01N 0C2024 02 06.66283713 33 10.216+11 24 06.07         21.03GVEC084T12
    
    Observer details:
    I52 Steward Observatory, Mt. Lemmon Station.  Observer H. Groeller.  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
        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, reference and Delta-T
    240205 I52 51.8+ 29.6+    240206 T12 53.0+ 31.1+    MPO782346   +0.01 days
    
    Orbital elements:
    2017 CN1                                                 Earth MOID = 0.0968 AU
    Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
    M 295.95657              (2000.0)            P               Q                  
    n   0.28161959     Peri.  186.71617     -0.38921985     +0.91184413             
    a   2.3051232      Node    60.44954     -0.83799808     -0.29166050             
    e   0.6255995      Incl.    8.63229     -0.38244884     -0.28891943             
    P   3.50           H   19.92          G   0.15           U   0                  
    Residuals in seconds of arc
    170202 F51  0.3-  0.1+    170217 H21  0.1-  0.2-    170331 T12  0.0   0.0
    170202 F51  1.0-  0.3-    170225 G45  0.4-  0.8-    170331 T12  0.0   0.1-
    170202 F51  0.3-  0.0     170225 G45  0.2-  0.0     170331 T12  0.1+  0.0
    170202 F51  0.2-  0.0     170225 G45  0.0   0.5+    170818 H21  0.1+  0.3-
    170203 W86  0.4+  0.2-    170225 G45  0.4+  0.2+    170818 H21  0.2+  0.4+
    170203 W86  0.4+  0.3-    170225 G45  0.1-  0.6+    170818 H21  0.6+  0.8+
    170203 W86  0.3+  0.2-    170225 T12  0.1+  0.0     170822 F51  0.2-  0.3+
    170203 291  0.2+  0.0     170227 H36  0.5+  0.1-    170822 F51  0.1-  0.5-
    170203 291  0.2+  0.1-    170227 H36  0.6+  0.1-    170822 F51  0.2+  0.0
    170203 291  0.1+  0.3-    170227 H36  0.2-  0.3+    170822 F51  0.0   0.0
    170203 568  0.0   0.0     170227 H36  0.7-  0.2+    170911 H21  0.6-  0.3+
    170203 568  0.0   0.1+    170227 691  0.3-  0.1+    170911 H21  1.0-  0.1+
    170203 568  0.1+  0.1+    170227 691  0.3-  0.1-    170911 H21  0.5-  0.2+
    170205 H01  0.1+  0.1+    170227 691  0.3-  0.5-    170916 F51  0.3+  0.0
    170205 H01  0.2+  0.0     170307 807  0.0   0.1-    170916 F51  0.1+  0.2-
    170205 H01  0.0   0.0     170307 807  0.2-  0.1-    170916 F51  0.0   0.1-
    170205 H01  0.1+  0.0     170307 807  0.1-  0.1+    170918 F51  0.1+  0.0
    170210 695  0.2+  0.5-    170310 G96  0.0   0.2-    170918 F51  0.0   0.2+
    170210 695  0.3+  0.0     170310 G96  0.5+  0.3-    170918 F51  0.2+  0.1-
    170210 695  0.1-  0.5-    170310 G96  0.3-  0.0     170918 F51  0.3-  0.1-
    170211 705  0.4-  0.1-    170310 G96  0.1-  0.1-    240205 I52  0.2+  0.7+
    170211 705  0.4-  0.2+    170313 926  0.3-  1.5+    240205 I52  0.6+  0.2+
    170211 705  0.3+  0.2+    170313 926  0.6-  1.3+    240205 I52  0.1+  0.5+
    170216 691  0.1-  0.6-    170313 926  0.3-  1.2-    240206 T12  0.0   0.1+
    170216 691  0.1+  0.3-    170318 926  0.1+  0.4-    240206 T12  0.0   0.1+
    170216 691  0.5-  0.2-    170318 926  1.1+  0.3+    240206 T12  0.0   0.1+
    170217 H21  0.2+  0.0     170318 926  0.4-  0.2+
    170217 H21  0.1+  0.1-    170331 T12  0.1-  0.0
    
    Ephemeris:
    2017 CN1                 a,e,i = 2.31, 0.63, 9                   q = 0.8630
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2024 01 09    12 16 21.0 +13 09 33   1.0355  1.6426   108.9    34.5    22.5
    ...
    2024 01 24    12 52 24.3 +12 13 45   0.8017  1.5085   114.9    36.3    21.8
    ...
    2024 02 01    13 14 59.9 +11 45 36   0.6883  1.4360   117.1    37.6    21.4
    ...
    2024 02 07    13 34 19.5 +11 22 46   0.6091  1.3815   118.1    39.0    21.1
    2024 02 08    13 37 47.8 +11 18 38   0.5965  1.3724   118.1    39.3    21.0
    2024 02 09    13 41 20.9 +11 14 22   0.5839  1.3633   118.2    39.6    21.0
    ...
    2024 02 15    14 04 37.1 +10 44 45   0.5123  1.3090   118.0    41.7    20.7
    ...
    2024 02 23    14 42 22.6 +09 46 30   0.4273  1.2373   116.0    46.0    20.3
    ...
    2024 03 09    16 24 32.3 +05 49 49   0.3105  1.1084   103.7    60.5    19.8
    
    A. U. Tomatic                (C) Copyright 2024 MPC           M.P.E.C. 2024-C84
    


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