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  • MPEC 2021-N41 : 2021 NB1

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    M.P.E.C. 2021-N41                                  Issued 2021 July 7, 16:13 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 NB1                                 
    
    
    Observations:
         K21N01B* C2021 07 04.57130021 32 11.456-06 20 15.12         21.63wUEN041F51
         K21N01B  C2021 07 04.58450021 32 13.967-06 21 11.65         21.37wUEN041F51
         K21N01B  C2021 07 04.59770921 32 16.495-06 22 09.04         21.06wUEN041F51
         K21N01B  C2021 07 05.40113921 35 01.546-07 21 05.55         21.36GVEN041F51
         K21N01B  C2021 07 05.40750721 35 02.783-07 21 33.84         21.45GVEN041F51
         K21N01B  C2021 07 05.41393621 35 04.064-07 22 02.58         21.22GVEN041F51
         K21N01B ^C2021 07 05.55502121 35 31.843-07 32 37.65         21.08GVEN041568
         K21N01B ^C2021 07 05.55600521 35 32.035-07 32 42.03         21.07GVEN041568
         K21N01B ^C2021 07 05.55698321 35 32.226-07 32 46.44         21.09GVEN041568
         K21N01B ^C2021 07 05.55797721 35 32.423-07 32 50.94         21.08GVEN041568
         K21N01B KC2021 07 05.99044621 37 02.90 -08 05 47.4          21.3 GVEN041L01
         K21N01B KC2021 07 05.99512521 37 03.87 -08 06 09.3          21.5 GVEN041L01
         K21N01B IC2021 07 05.99979721 37 04.78 -08 06 30.7          21.5 GVEN041L01
         K21N01B IC2021 07 06.00473521 37 05.77 -08 06 52.8          21.6 GVEN041L01
         K21N01B 1C2021 07 06.03636 21 37 12.19 -08 09 20.4          20.4 VVEN041033
         K21N01B 1C2021 07 06.03919 21 37 12.77 -08 09 33.0          20.6 VVEN041033
         K21N01B 1C2021 07 06.04202 21 37 13.34 -08 09 46.4          21.1 VVEN041033
         K21N01B KC2021 07 06.32457421 38 12.58 -08 31 30.8          21.2 VuEN041H21
         K21N01B KC2021 07 06.33106321 38 13.90 -08 32 01.2          21.9 VuEN041H21
         K21N01B  C2021 07 07.46494721 42 17.061-10 01 58.34         21.58wUEN041F51
         K21N01B  C2021 07 07.47736021 42 19.630-10 02 59.15         21.31wUEN041F51
         K21N01B  C2021 07 07.48974821 42 22.212-10 03 59.52         21.26wUEN041F51
         K21N01B  C2021 07 07.50215721 42 24.791-10 05 00.22         21.86wUEN041F51
    
    Observer details:
    033 Karl Schwarzschild Observatory, Tautenburg.  Observers S. Melnikov, C.
        Hoegner, U. Laux, F. Ludwig, B. Stecklum.  Measurer B. Stecklum.  1.34-m
        f/3 Schmidt + CCD.
    568 Mauna Kea.  Observers R. Wainscoat, H. Januszewski, T. Burdullis.
        Measurers R. Weryk, R. Wainscoat.  3.6-m Canada-France-Hawaii Telescope +
        CCD.
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz, M.
        Willman, K. Chambers, I. Smith.  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.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers T. Linder, R. Holmes, L. Horn.  1.3-m f/4.0 astrograph + CCD.
    L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
        + CCD.
    
    Orbital elements:
    2021 NB1                                                 Earth MOID = 0.2605 AU
    Epoch 2021 July 5.0 TT = JDT 2459400.5                  Veres                   
    M 353.69034              (2000.0)            P               Q                  
    n   0.18800867     Peri.  205.30492     +0.72924790     +0.50676884             
    a   3.0177561      Node   116.27389     -0.50753633     +0.85126134             
    e   0.5881336      Incl.   30.84621     -0.45891652     -0.13615971             
    P   5.24           H   21.84          G   0.15           U   9                  
    Residuals in seconds of arc
    210704 F51  0.2+  0.3-    210705 568  0.0   0.0     210706 033  0.4+  0.3-
    210704 F51  0.0   0.2+    210705 568  0.0   0.0     210706 H21  0.3-  0.5+
    210704 F51  0.0   0.1-    210705 L01  0.1+  0.1-    210706 H21  0.2-  0.3+
    210705 F51  0.3+  0.3-    210705 L01  0.4+  0.4-    210707 F51  0.1+  0.0
    210705 F51  0.1-  0.0     210705 L01  0.0   0.3-    210707 F51  0.1-  0.1-
    210705 F51  0.1-  0.2+    210706 L01  0.2-  0.3+    210707 F51  0.0   0.1+
    210705 568  0.0   0.0     210706 033  0.3+  0.4-    210707 F51  0.0   0.0
    210705 568  0.0   0.0     210706 033  0.4+  0.1+
    
    Ephemeris:
    2021 NB1                 a,e,i = 3.02, 0.59, 31                  q = 1.2429
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 06 07    20 22 40.5 +11 00 28   0.6238  1.4326   120.0    37.8    23.1
    ...
    2021 06 22    20 55 55.3 +04 54 17   0.4632  1.3567   129.1    35.6    22.3
    ...
    2021 06 30    21 17 44.7 -01 23 29   0.3911  1.3226   135.0    32.9    21.8
    ...
    2021 07 06    21 37 04.1 -08 06 08   0.3468  1.3005   139.6    30.4    21.4
    2021 07 07    21 40 35.7 -09 24 17   0.3404  1.2971   140.4    30.0    21.4
    2021 07 08    21 44 13.2 -10 45 36   0.3344  1.2939   141.0    29.6    21.3
    ...
    2021 07 14    22 08 14.9 -19 54 35   0.3060  1.2762   143.8    28.1    21.0
    ...
    2021 07 22    22 47 25.0 -33 42 09   0.2918  1.2582   141.7    30.0    21.0
    ...
    2021 08 06    00 22 16.6 -54 39 30   0.3351  1.2430   126.5    41.0    21.5
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-N41
    


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