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  • MPEC 2023-O16 : 2018 BG5

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    M.P.E.C. 2023-O16                                 Issued 2023 July 17, 14:07 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
    
                                    2018 BG5                                 
    
    
                               Revision to MPEC 2018-B126                           
    
    Additional Observations:
         K18B05G  C2018 02 13.27168308 09 47.015+28 33 35.13         21.24GVEO016F51
         K18B05G  C2018 02 13.28311508 09 46.774+28 33 18.26         21.09GVEO016F51
         K18B05G  C2018 02 13.29453408 09 46.505+28 33 01.26         20.23GVEO016F51
         K18B05G  C2018 02 13.30593708 09 46.272+28 32 43.82         22.18GVEO016F51
         K18B05G  C2023 06 16.55025720 19 34.549-30 06 39.53         22.50GVEO016F51
         K18B05G  C2023 06 16.55796120 19 34.988-30 06 44.58         22.45GVEO016F51
         K18B05G  C2023 06 20.46852920 24 40.248-30 56 20.60         22.51GVEO016F52
         K18B05G  C2023 06 20.49027820 24 41.505-30 56 40.65         22.22GVEO016F52
         K18B05G KC2023 07 16.29635 21 28 20.93 -47 25 02.5          19.9 GVEO016W94
         K18B05G KC2023 07 16.30257 21 28 23.19 -47 25 39.9          18.9 GVEO016W94
         K18B05G KC2023 07 16.30879 21 28 25.46 -47 26 16.1          19.8 GVEO016W94
         K18B05G KC2023 07 16.35383 21 28 42.65 -47 30 38.6          20.2 GVEO016X10
         K18B05G KC2023 07 16.35947 21 28 44.83 -47 31 10.2          19.8 GVEO016X10
         K18B05G KC2023 07 16.36508 21 28 47.03 -47 31 42.7          19.7 GVEO016X10
         K18B05G KC2023 07 16.37279 21 28 50.01 -47 32 27.1          19.0 GVEO016X10
         K18B05G KC2023 07 16.37841 21 28 52.22 -47 32 59.5          19.2 GVEO016X10
         K18B05G KC2023 07 16.38404 21 28 54.48 -47 33 30.9          19.2 GVEO016X10
    
    Observer details:
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe, P.
        Minguez, A. Schultz, I. Smith.  Measurers S. Chastel, J. Fairlamb, M.
        Huber, Y. Ramanjooloo, R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien +
        CCD.
    F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, K. Chambers, T. Dukes, T.
        Lowe, P. Minguez, A. Schultz, I. Smith.  Measurers S. Chastel, J.
        Fairlamb, M. Huber, Y. Ramanjooloo, R. Wainscoat, R. Weryk.  1.8-m
        Ritchey-Chretien + CCD.
    W94 MAP, San Pedro de Atacama.  Observers A. Maury, G. Attard.  Measurers A.
        Maury, G. Attard, D. Parrott, F. Signoret.  0.36-m f/1.9 Schmidt
        astrograph + CCD.
    X10 OVTLN, San Pedro de Atacama.  Observers A. Maury, G. Attard, F. Signoret.
        Measurers A. Maury, G. Attard, D. Parrott.  0.50-m f/4  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
    180213 F51 0.00+ 0.00+    230716 X10 0.20+ 0.08+    MPO750185   +0.01 days
    
    Orbital elements:
    2018 BG5                                                 Earth MOID = 0.0269 AU
    Epoch 2023 Feb. 25.0 TT = JDT 2460000.5                 Veres                   
    M 176.02863              (2000.0)            P               Q                  
    n   0.83784246     Peri.   34.65765     +0.84646958     -0.53243516             
    a   1.1143659      Node   357.51117     +0.48074721     +0.76544495             
    e   0.2828824      Incl.    1.88782     +0.22884792     +0.36139567             
    P   1.18           H   24.08          G   0.15           U   1                  
    Residuals in seconds of arc
    180122 703  0.2-  0.3-    180123 587  0.3+  0.5-    180204 I52  0.1+  0.2-
    180122 703  0.5-  0.4-    180123 587  0.2+  0.3-    180204 I52  0.2-  0.1+
    180122 703  0.8-  0.5-    180123 160  0.4-  0.0     180204 I52  0.1-  0.4-
    180122 I52  0.1+  0.3+    180123 160  0.2-  0.7-    180205 H21  0.4-  0.4-
    180122 I52  0.2+  0.2+    180123 160  0.3-  0.0     180205 H21  0.0   0.0
    180122 I52  0.3-  0.2+    180123 160  0.3+  0.5-    180205 H21  0.2+  0.3-
    180122 I52  0.2+  0.0     180123 160  0.8+  0.3-    180206 I52  0.1-  0.1-
    180122 703  0.2-  0.6-    180123 204  0.0   0.2+    180206 I52  0.5+  0.4+
    180122 703  0.3+  0.1+    180123 204  0.0   0.1-    180206 I52  0.3-  0.4+
    180122 703  0.1+  0.2-    180123 104  0.1+  0.1+    180206 I52  0.1+  0.0
    180122 703  0.5-  0.4+    180123 204  0.1-  0.1+    180208 I52  0.1-  0.3+
    180122 I52  0.1+  0.2-    180123 104  0.1+  0.1-    180208 I52  0.4-  0.0
    180122 I52  0.2-  0.3+    180123 104  0.1-  0.0     180208 I52  0.9-  0.5-
    180122 I52  0.2+  0.2+    180124 K38  0.1+  0.2+    180208 I52  0.3-  0.3+
    180122 C77  0.1+  0.3-    180124 W34  0.2+  0.1-    180208 691  0.4-  0.6+
    180122 C77  0.0   0.3-    180124 K38  0.0   0.1-    180208 691  0.7+  0.5+
    180122 C77 (0.9+  1.9+)   180124 W34  0.4-  0.2+    180208 691  0.0   0.4+
    180122 C77  0.1+  0.3+    180124 K38  0.2+  0.3+    180210 G96  0.4+  0.2-
    180122 K63  0.4-  0.2-    180124 I52  0.1+  0.3-    180210 G96  0.1-  0.3+
    180122 K63  0.8-  0.1-    180124 I52  0.0   0.4-    180210 691  0.3-  0.3-
    180122 K63  0.1+  0.2-    180124 I52  0.2+  0.5+    180210 G96  0.0   0.0
    180122 Z84  0.0   0.0     180124 I52  0.0   0.5+    180210 G96  0.2+  0.2-
    180122 Z84  0.0   0.1-    180125 K65  0.7-  0.4+    180210 691  0.2+  0.3-
    180122 Z84  0.1-  0.3-    180125 K65  0.2+  0.1+    180213 F51  0.0   0.1+
    180122 L01  0.1+  0.1-    180125 H01  0.0   0.1+    180213 F51  0.0   0.0
    180122 L01  0.0   0.3+    180125 H01  0.0   0.0     180213 F51  0.2-  0.1-
    180122 L01  0.0   0.3+    180125 H01  0.0   0.0     180213 F51  0.2+  0.7-
    180122 L01  0.1-  0.0     180125 H01  0.0   0.0     230616 F51  0.1-  0.1+
    180122 L01  0.4+  0.3+    180125 703  0.1-  0.2+    230616 F51  0.4-  0.2+
    180122 L01  0.1+  0.1-    180125 703  0.1+  0.3+    230620 F52  0.3+  0.4+
    180122 L01  0.0   0.1-    180125 703  0.6+  1.0-    230620 F52  0.0   0.2-
    180123 204  0.1+  0.1+    180125 703  0.2+  0.6-    230716 W94  0.1+  0.0
    180123 204  0.2+  0.1-    180125 850  0.2-  0.3-    230716 W94  0.4-  0.6-
    180123 204  0.2+  0.0     180125 850  0.1+  0.2-    230716 W94  0.9-  0.2-
    180123 I52  0.3-  0.2-    180125 850  0.2+  0.3+    230716 X10  0.5+  0.3-
    180123 I52  0.0   0.0     180125 850  0.0   0.1+    230716 X10  0.6+  0.5+
    180123 I52  0.2+  0.6+    180125 I52  0.0   0.0     230716 X10  0.8+  0.2+
    180123 L04  0.4-  0.1-    180125 I52  0.1-  0.0     230716 X10  0.5+  0.0
    180123 L04  0.1+  0.1-    180125 I52  0.1-  0.1-    230716 X10  0.5+  0.3-
    180123 L04  0.0   0.2+    180125 I52  0.0   0.1+    230716 X10  0.8+  0.3+
    180123 587  0.1+  0.0     180204 I52  0.2+  0.8-
    
    Ephemeris:
    2018 BG5                 a,e,i = 1.11, 0.28, 2                   q = 0.7991
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2023 06 17    20 20 09.5 -30 11 20   0.2196  1.1999   143.7    30.1    22.5
    ...
    2023 07 02    20 41 02.1 -34 44 06   0.1325  1.1349   151.5    25.3    21.1
    ...
    2023 07 10    20 58 41.2 -39 47 18   0.09141 1.0981   151.9    25.9    20.3
    ...
    2023 07 16    21 26 12.9 -46 54 45   0.06320 1.0698   146.6    31.5    19.6
    2023 07 17    21 34 03.2 -48 37 39   0.05879 1.0650   144.9    33.3    19.5
    2023 07 18    21 43 42.9 -50 33 25   0.05449 1.0603   142.8    35.5    19.3
    ...
    2023 07 24    00 40 59.8 -65 25 41   0.03286 1.0315   117.5    60.9    18.9
    ...
    2023 08 01    06 48 52.8 -22 48 58   0.03442 0.9931    49.5   129.0    22.4
    ...
    2023 08 16    07 55 51.1 +11 20 17   0.1001  0.9234    25.5   151.9    27.7
    
    A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-O16
    


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