• MPC Preparation (Info)

  • MPEC 2023-B178 : 2018 BN1

    The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.

    A form allowing access to any MPEC is at the bottom of this page.


    Read MPEC 2023-B177 Read MPEC 2023-B179


    M.P.E.C. 2023-B178                             Issued 2023 January 29, 01:47 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 BN1                                 
    
    
                               Revision to MPEC 2018-B64                            
    
    Additional Observations:
         K18B01N  C2023 01 13.56319410 40 48.881+42 02 43.39         21.13GVEB178F52
         K18B01N  C2023 01 13.56582510 40 47.409+42 02 38.34         20.93GVEB178F52
         K18B01N  C2023 01 28.33650109 13 31.667+34 05 27.42         22.39GVEB178V00
         K18B01N  C2023 01 28.33761409 13 31.400+34 05 25.40         21.18GVEB178V00
         K18B01N  C2023 01 28.34147609 13 30.443+34 05 18.49         21.39GVEB178V00
         K18B01N  C2023 01 28.34258109 13 30.184+34 05 16.37         21.49GVEB178V00
         K18B01N  C2023 01 28.34643809 13 29.233+34 05 09.38         21.33GVEB178V00
         K18B01N  C2023 01 28.34754109 13 28.967+34 05 07.73         21.74GVEB178V00
         K18B01N  C2023 01 28.35149109 13 28.013+34 05 00.35         21.81GVEB178V00
         K18B01N  C2023 01 28.35259609 13 27.739+34 04 57.97         21.52GVEB178V00
         K18B01N KC2023 01 28.40181109 13 15.850+34 03 27.50         21.10GVEB178I52
         K18B01N KC2023 01 28.41572709 13 12.440+34 03 02.20         21.75GVEB178I52
         K18B01N KC2023 01 28.41960509 13 11.496+34 02 54.96         21.44GVEB178I52
         K18B01N KC2023 01 28.42269709 13 10.751+34 02 49.09         21.33GVEB178I52
         K18B01N KC2023 01 28.42579509 13 10.024+34 02 43.30         21.61GVEB178I52
         K18B01N KC2023 01 28.42888709 13 09.246+34 02 37.43         21.41GVEB178I52
    
    Observer details:
    F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, K. Chambers, T. Dukes, T.
        Lowe, A. Schultz, I. Smith.  Measurers S. Chastel, J. Fairlamb, M. Huber,
        Y. Ramanjooloo, R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observer R. A. Kowalski.
        Measurers E. J. Christensen, 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, A. Serrano, F. C. Shelly,
        K. W. Wierzchos.  1.0-m prime focus + CCD.
    V00 Kitt Peak-Bok.  Observer H. Groeller.  Measurers M. J. Brucker, E. J.
        Christensen, C. E. Woodward, 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, R. S. McMillan, D. Rankin, R. L. Seaman, A.
        Serrano, F. C. Shelly, K. W. Wierzchos.  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
    230113 F52   50+   26+    230128 I52   25+    8+    E2021-W50   +5.55 days
    
    Orbital elements:
    2018 BN1                                                 Earth MOID = 0.0271 AU
    Epoch 2023 Feb. 25.0 TT = JDT 2460000.5                 Veres                   
    M  62.74999              (2000.0)            P               Q                  
    n   0.59091430     Peri.   52.33743     +0.82208452     -0.56862233             
    a   1.4064352      Node   342.25761     +0.48771455     +0.72962756             
    e   0.4166617      Incl.    5.47601     +0.29378830     +0.37988455             
    P   1.67           H   23.87          G   0.15           U   2                  
    Residuals in seconds of arc
    180114 695  0.1+  0.5+    180124 V06  0.4-  0.2-    230128 V00  0.1-  0.0
    180114 695  0.0   0.1+    180124 V06  0.2+  0.2-    230128 V00  0.1-  0.3+
    180116 F51  0.0   0.0     180124 V06  0.3-  0.4-    230128 V00  0.0   0.1+
    180116 F51  0.0   0.0     180124 V06  0.0   0.3-    230128 V00  0.0   0.3-
    180116 F51  0.0   0.0     230113 F52  0.1+  0.2+    230128 I52  0.8+  0.2-
    180117 568  0.1+  0.0     230113 F52  0.2-  0.1-    230128 I52  0.1+  0.3+
    180117 568  0.1+  0.0     230128 V00  0.1+  0.1+    230128 I52  0.1-  0.3+
    180117 568  0.1+  0.1-    230128 V00  0.2+  0.1+    230128 I52  0.1-  0.2+
    180119 291  0.1+  0.1-    230128 V00  0.1-  0.1+    230128 I52  0.1+  0.1+
    180119 291  0.2-  0.2-    230128 V00  0.1+  0.0     230128 I52  0.4-  0.0
    
    Ephemeris:
    2018 BN1                 a,e,i = 1.41, 0.42, 5                   q = 0.8204
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2022 12 30    13 31 19.7 +43 56 42   0.1111  1.0018    96.4    77.3    21.8
    ...
    2023 01 14    10 37 06.7 +41 49 04   0.1482  1.0979   137.8    37.0    21.4
    ...
    2023 01 22    09 42 26.4 +37 26 42   0.1824  1.1508   154.0    22.0    21.5
    ...
    2023 01 28    09 14 48.5 +34 15 37   0.2143  1.1907   162.3    14.6    21.7
    2023 01 29    09 11 04.8 +33 45 38   0.2202  1.1973   163.2    13.7    21.8
    2023 01 30    09 07 34.2 +33 16 17   0.2262  1.2040   164.0    13.1    21.8
    ...
    2023 02 05    08 50 32.9 +30 34 08   0.2651  1.2436   164.8    12.0    22.2
    ...
    2023 02 13    08 36 21.8 +27 34 20   0.3248  1.2956   158.9    15.9    22.9
    ...
    2023 02 28    08 27 10.8 +23 25 18   0.4593  1.3899   144.4    24.5    24.0
    
    A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-B178
    


    Read MPEC 2023-B177 Read MPEC 2023-B179


    MPEC number:

    Enter an MPEC number in one of the following forms:

    • 1997-B01 (the full form)
    • J97B01 (the packed version of the full form)
    • B01 (the abbreviated form)