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  • MPEC 2021-B41 : 2021 BP

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    M.P.E.C. 2021-B41                              Issued 2021 January 18, 02:15 UT
    
         The Minor Planet Electronic Circulars contain information on unusual
             minor planets and routine data on comets.  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
    
                                     2021 BP                                 
    
    
    Observations:
         K21B00P* C2021 01 16.40698312 49 05.32 +41 43 03.4          19.66GVEB041G96
         K21B00P  C2021 01 16.41286912 48 51.30 +41 43 22.2          19.69GVEB041G96
         K21B00P  C2021 01 16.41875112 48 37.37 +41 43 40.9          19.84GVEB041G96
         K21B00P  C2021 01 16.42463112 48 23.34 +41 43 59.7          19.80GVEB041G96
         K21B00P KC2021 01 16.51853312 44 40.11 +41 48 31.1          19.58GVEB041I52
         K21B00P KC2021 01 16.51911512 44 38.76 +41 48 32.8          19.43GVEB041I52
         K21B00P KC2021 01 16.51968412 44 37.38 +41 48 34.1          19.38GVEB041I52
         K21B00P KC2021 01 16.52025112 44 36.05 +41 48 35.6          19.38GVEB041I52
         K21B00P 1C2021 01 17.07576 12 23 37.98 +42 04 32.9          20.2 VVEB041033
         K21B00P 1C2021 01 17.07651 12 23 36.32 +42 04 33.9          19.9 VVEB041033
         K21B00P 1C2021 01 17.07727 12 23 34.65 +42 04 34.6          20.0 VVEB041033
         K21B00P mC2021 01 17.34891412 13 45.82 +42 07 37.0          20.81GVEB041I52
         K21B00P mC2021 01 17.34916012 13 45.14 +42 07 36.0          20.12GVEB041I52
         K21B00P mC2021 01 17.34965512 13 44.12 +42 07 36.2                VEB041I52
         K21B00P KC2021 01 17.38429 12 12 26.99 +42 07 49.2          20.2 GVEB041H36
         K21B00P KC2021 01 17.40154 12 11 49.46 +42 07 52.9          20.0 GVEB041H36
         K21B00P KC2021 01 17.41872 12 11 12.16 +42 07 56.7          19.6 GVEB041H36
         K21B00P  C2021 01 17.63012012 03 45.754+42 07 47.92         19.75wUEB041F51
         K21B00P  C2021 01 17.63923812 03 26.417+42 07 43.44         19.76wUEB041F51
         K21B00P  C2021 01 17.85512 11 56 09.22 +42 04 36.7          19.7 GVEB041N88
         K21B00P  C2021 01 17.85545 11 56 08.49 +42 04 36.6          19.5 GVEB041N88
         K21B00P  C2021 01 17.85583 11 56 07.66 +42 04 36.2          19.6 GVEB041N88
         K21B00P  C2021 01 17.85617 11 56 07.07 +42 04 36.6          19.9 GVEB041N88
         K21B00P  C2021 01 17.85650 11 56 06.29 +42 04 35.8          20.2 GVEB041N88
         K21B00P KC2021 01 18.00664911 51 09.21 +42 01 38.0          19.8 GVEB041I93
         K21B00P KC2021 01 18.00961311 51 03.21 +42 01 34.5          20.4 GVEB041I93
         K21B00P KC2021 01 18.01265511 50 57.15 +42 01 31.7          20.3 GVEB041I93
    
    Observer details:
    033 Karl Schwarzschild Observatory, Tautenburg.  Observers S. Melnikov, F.
        Ludwig, B. Stecklum.  Measurer B. Stecklum.  1.34-m f/3 Schmidt + CCD.
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz, M.
        Willman.  Measurers K. Chambers, S. Chastel, T. de Boer, L. Denneau, J.
        Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo,
        R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    G96 Mt. Lemmon Survey.  Observer D. C. Fuls.  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.  1.5-m reflector + 10K CCD.
    H36 Sandlot Observatory, Scranton.  Observer G. Hug.  0.56-m reflector + CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observer D. Rankin.  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.  1.0-m reflector +
        CCD.
    I93 St Pardon de Conques.  Observer F. Losse.  0.40-m f/3.7 reflector + CCD.
    N88 Xingming Observatory #3, Nanshan.  Observer X. Gao.  Measurer Q.-Z. Ye.
        0.6-m f/8 Ritchey-Chretien + CCD.
    
    Orbital elements:
    2021 BP                                                  Earth MOID = 0.0625 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
    M   5.75589              (2000.0)            P               Q
    n   0.32434696     Peri.   48.96271     +0.92588834     -0.37468971
    a   2.0979550      Node   332.93790     +0.30683695     +0.82047220
    e   0.7461560      Incl.    6.10146     +0.22041293     +0.43177887
    P   3.04           H   23.1           G   0.15           U   8
    Residuals in seconds of arc
    210116 G96  0.1-  0.2+    210117 033  0.4-  0.1-    210117 F51  0.2+  0.0
    210116 G96  0.2-  0.1+    210117 033  0.1-  0.3-    210117 N88  0.5+  0.3-
    210116 G96  0.5+  0.0     210117 I52  1.4+  1.2+    210117 N88  0.1-  0.1-
    210116 G96  0.1+  0.2+    210117 I52  0.3-  0.0     210117 N88  0.7-  0.2-
    210116 I52  0.1-  0.1-    210117 I52  0.4+  0.0     210117 N88  0.5+  0.5+
    210116 I52  0.2+  0.0     210117 H36  0.2-  0.1+    210117 N88  0.6-  0.1-
    210116 I52  0.2-  0.2-    210117 H36  0.4-  0.5-    210118 I93  0.6+  0.3+
    210116 I52  0.0   0.2-    210117 H36  0.4-  0.2+    210118 I93  0.5-  0.2-
    210117 033  0.7-  0.3-    210117 F51  0.0   0.0     210118 I93  0.4-  0.0
    
    Ephemeris:
    2021 BP                  a,e,i = 2.10, 0.75, 6                   q = 0.5326
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2020 12 19    18 53 08.6 -11 48 37   0.3536  0.6607    19.3   150.5    28.5
    ...
    2021 01 03    18 00 43.3 +01 59 02   0.1573  0.8477    28.1   146.9    26.6
    ...
    2021 01 11    16 04 23.1 +25 13 57   0.09062 0.9540    68.5   106.4    21.7
    ...
    2021 01 17    12 26 25.3 +42 03 30   0.09308 1.0335   120.0    55.5    20.0
    2021 01 18    11 51 19.0 +42 02 11   0.09899 1.0467   127.2    48.5    20.0
    2021 01 19    11 20 41.7 +41 27 56   0.1060  1.0598   133.6    42.2    20.0
    ...
    2021 01 25    09 34 30.2 +35 05 50   0.1634  1.1379   158.4    18.6    20.4
    ...
    2021 02 02    08 44 44.9 +29 10 30   0.2595  1.2398   167.1    10.2    21.3
    ...
    2021 02 17    08 17 39.4 +24 03 38   0.4704  1.4223   152.6    18.6    23.2
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-B41
    


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