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  • MPEC 2024-B12 : 2018 BW5

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    M.P.E.C. 2024-B12                              Issued 2024 January 16, 19:01 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 BW5                                 
    
    
                               Revision to MPEC 2018-B141                           
    
    Additional Observations:
         K18B05W  C2005 12 28.12893 06 00 57.00 +20 32 28.0          20.8 VcEB012691
         K18B05W  C2005 12 28.14629 06 00 56.56 +20 32 30.1          21.0 VcEB012691
         K18B05W  C2005 12 28.16373 06 00 56.17 +20 32 32.2          20.7 VcEB012691
         K18B05W  C2020 12 12.38243 05 12 15.33 +19 51 08.9          21.1 GVEB012V00
         K18B05W  C2020 12 12.38771 05 12 15.07 +19 51 08.6          21.1 GVEB012V00
         K18B05W  C2020 12 12.39299 05 12 14.81 +19 51 08.2          21.0 GVEB012V00
         K18B05W  C2020 12 12.39827 05 12 14.56 +19 51 08.0          21.1 GVEB012V00
         K18B05W  C2021 01 18.07665505 04 08.44 +20 49 00.5          21.48GVEB012G96
         K18B05W  C2021 01 18.08229105 04 08.57 +20 49 01.2          21.38GVEB012G96
         K18B05W  C2021 01 18.08795705 04 08.83 +20 49 03.0          21.43GVEB012G96
         K18B05W  C2021 01 18.09359105 04 09.03 +20 49 04.2          22.09GVEB012G96
         K18B05W  C2023 12 08.36347505 06 24.966+19 44 46.97         21.47GVEB012V00
         K18B05W  C2023 12 08.36897405 06 24.696+19 44 46.39         21.27GVEB012V00
         K18B05W  C2023 12 08.37448005 06 24.433+19 44 46.07         21.23GVEB012V00
         K18B05W  C2023 12 08.37998105 06 24.156+19 44 45.64         21.07GVEB012V00
         K18B05W  C2023 12 10.32333305 05 01.035+19 42 43.83         20.95wXEB012F52
         K18B05W  C2023 12 10.33559305 05 00.406+19 42 43.41         20.96wXEB012F52
         K18B05W  C2023 12 10.34785905 04 59.769+19 42 42.89         21.02wXEB012F52
         K18B05W  C2023 12 10.36024305 04 59.123+19 42 42.41         20.93wXEB012F52
         K18B05W  C2023 12 15.33633305 01 12.240+19 38 31.49         20.92wXEB012F52
         K18B05W  C2023 12 15.34662805 01 11.676+19 38 31.24         20.95wXEB012F52
         K18B05W  C2023 12 15.36728805 01 10.548+19 38 30.70         20.94wXEB012F52
         K18B05W 0C2023 12 16.26211905 00 29.178+19 37 54.08               VEB012G96
         K18B05W 0C2023 12 16.26727305 00 28.886+19 37 53.98         20.64GVEB012G96
         K18B05W 0C2023 12 16.27243105 00 28.649+19 37 53.69         21.05GVEB012G96
         K18B05W 0C2023 12 16.27761405 00 28.300+19 37 53.76         21.05GVEB012G96
         K18B05W  C2024 01 05.23415704 50 08.149+19 51 50.43         21.32wXEB012F52
         K18B05W  C2024 01 05.24721304 50 07.977+19 51 52.48         21.29wXEB012F52
         K18B05W  C2024 01 05.26023604 50 07.777+19 51 54.39         21.01wXEB012F52
    
    Observer details:
    691 Steward Observatory, Kitt Peak-Spacewatch.  Observer R. S. McMillan.
        0.9-m f/3 reflector + CCD.
    F52 Pan-STARRS 2, 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.
    G96 Mt. Lemmon Survey.  Observers D. C. Fuls, A. R. Gibbs.  Measurers E. J.
        Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H.
        Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D.
        Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos, M. Toplic, M.
        Mandarino, E. Chaghafi, P. Maiorana, K. Fundin, P. Argitis, G. Toth, S. E.
        Haag, W. P. Collins, E. Schwarz, V. Gonano, A. Vincent, D. Fay, J. B.
        Fazekas, J. K. Hogan, A. Serrano.  1.5-m reflector + 10K CCD.
    V00 Kitt Peak-Bok.  Observers H. Groeller, J. V. Scotti.  Measurers M. J.
        Brucker, E. J. Christensen, C. E. Woodward, G. A. Farneth, D. C. Fuls, A.
        R. Gibbs, A. D. Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J.
        Leonard, R. S. McMillan, T. A. Pruyne, D. Rankin, R. L. Seaman, F. C.
        Shelly, K. W. Wierzchos, D. Fay, J. B. Fazekas, J. K. Hogan, C. Lejoly, R.
        A. Mastaler, A. Serrano.  2.25-m reflector + CCD, 2.25-m reflector + 4x4K
        mosaic CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or zero decimals in degrees), reference and Delta-T
    051228 691   78-   18-    240105 F52   27-    5-    MPO431488   +17.9 days
    
    Orbital elements:
    2018 BW5                                                 Earth MOID = 0.2703 AU
    Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
    M 309.11569              (2000.0)            P               Q                  
    n   0.32792650     Peri.  349.10592     -0.62428109     -0.78110802             
    a   2.0826600      Node   139.52199     +0.71811641     -0.57983621             
    e   0.3966086      Incl.    1.05695     +0.30754179     -0.23164680             
    P   3.01           H   22.04          G   0.15           U   1                  
    Residuals in seconds of arc
    051228 691  0.1+  0.0     180125 V06  0.1+  0.3+    231208 V00  0.1+  0.2+
    051228 691  0.3-  0.1-    180125 V06  0.0   0.1-    231208 V00  0.0   0.2+
    051228 691  0.2+  0.2-    180125 V06  0.1+  0.1-    231210 F52  0.0   0.1+
    180123 G96  0.2+  0.7-    180125 V06  0.0   0.4+    231210 F52  0.0   0.2+
    180123 G96  0.0   0.2+    180126 G96  0.2+  0.3+    231210 F52  0.0   0.1+
    180123 G96  0.2-  0.4+    180126 G96  0.1-  0.2+    231210 F52  0.0   0.2+
    180123 G96  0.0   0.2+    180126 G96  0.1+  0.2+    231215 F52  0.1-  0.2+
    180123 V06  0.2+  0.2-    201212 V00  0.1-  0.1+    231215 F52  0.2-  0.1+
    180123 V06  0.1+  0.0     201212 V00  0.1-  0.2+    231215 F52  0.1-  0.1+
    180123 V06  0.0   0.4-    201212 V00  0.2-  0.1+    231216 G96  0.2+  0.2-
    180123 V06  0.3+  0.2-    201212 V00  0.1-  0.2+    231216 G96  0.0   0.1-
    180124 G96  0.5+  0.0     210118 G96  0.6+  0.6+    231216 G96  0.6+  0.2-
    180124 G96  0.4-  0.1-    210118 G96  0.7-  0.2-    231216 G96  0.3-  0.0
    180124 G96  0.3+  0.2-    210118 G96  0.1-  0.0     240105 F52  0.0   0.2+
    180124 691  0.1-  0.1-    210118 G96  0.4-  0.4-    240105 F52  0.1+  0.2+
    180124 691  0.3-  0.2+    231208 V00  0.1-  0.2+    240105 F52  0.1-  0.0
    180124 691  0.0   0.4-    231208 V00  0.1-  0.1+
    
    Ephemeris:
    2018 BW5                 a,e,i = 2.08, 0.40, 1                   q = 1.2567
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2023 12 17    04 59 55.3 +19 37 36   0.3990  1.3796   170.9     6.5    21.2
    ...
    2024 01 01    04 51 01.4 +19 44 04   0.3731  1.3286   153.9    19.0    21.5
    ...
    2024 01 09    04 50 10.4 +20 01 19   0.3705  1.3062   145.7    25.1    21.6
    ...
    2024 01 15    04 52 09.8 +20 21 09   0.3727  1.2919   140.1    29.2    21.7
    2024 01 16    04 52 44.3 +20 24 59   0.3734  1.2897   139.2    29.9    21.8
    2024 01 17    04 53 23.0 +20 28 58   0.3742  1.2876   138.4    30.5    21.8
    ...
    2024 01 23    04 58 45.3 +20 55 25   0.3803  1.2763   133.6    34.0    21.9
    ...
    2024 01 31    05 09 50.0 +21 35 07   0.3921  1.2652   128.1    37.8    22.0
    ...
    2024 02 15    05 41 34.8 +22 46 35   0.4248  1.2566   120.3    42.7    22.3
    
    A. U. Tomatic                (C) Copyright 2024 MPC           M.P.E.C. 2024-B12
    


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