• MPC Preparation (Info)

  • MPEC 2021-N91 : 2021 NO3

    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 2021-N90 Read MPEC 2021-N92


    M.P.E.C. 2021-N91                                 Issued 2021 July 11, 02:52 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 NO3                                 
    
    
    Observations:
         K21N03O*KC2021 07 08.17726 20 08 34.97 -27 30 17.5          20.7 rqEN091X74
         K21N03O KC2021 07 08.18519 20 08 34.90 -27 30 36.2          19.7 rqEN091X74
         K21N03O KC2021 07 08.19347 20 08 34.89 -27 30 57.4          20.3 rqEN091X74
         K21N03O KC2021 07 09.20193 20 08 57.74 -28 15 32.5          20.2 rqEN091X74
         K21N03O KC2021 07 09.20934 20 08 57.77 -28 15 53.6          20.5 rqEN091X74
         K21N03O KC2021 07 09.21739 20 08 57.69 -28 16 16.8          21.0 rqEN091X74
         K21N03O KC2021 07 09.22558 20 08 57.62 -28 16 39.7          20.0 rqEN091X74
         K21N03O KC2021 07 09.23302 20 08 57.59 -28 17 01.3          19.5 rqEN091X74
         K21N03O KC2021 07 09.24094 20 08 57.67 -28 17 23.7          19.5 rqEN091X74
         K21N03O |C2021 07 10.22267 20 09 24.19 -29 08 34.1          20.3 VuEN091807
         K21N03O |C2021 07 10.22537 20 09 24.19 -29 08 43.2          20.3 VuEN091807
         K21N03O |C2021 07 10.22769 20 09 24.20 -29 08 51.3          20.3 VuEN091807
         K21N03O KC2021 07 10.97386020 09 49.37 -29 54 02.3          20.1 GXEN091Y00
         K21N03O KC2021 07 10.97821220 09 49.45 -29 54 19.9          19.8 GXEN091Y00
         K21N03O KC2021 07 10.98256420 09 49.54 -29 54 37.6          20.3 GXEN091Y00
    
    Observer details:
    807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes, L.
        Horn.  0.61-m f/6.5 astrograph + CCD.
    X74 Observatorio Campo dos Amarais.  Observer L. S. Amaral.  0.31-m f/3.4
        Newtonian reflector + CCD.
    Y00 SONEAR Observatory, Oliveira.  Observers C. Jacques, E. Pimentel, J.
        Barros.  Measurer C. Jacques.  0.45-m f/2.9 reflector + CCD.
    
    Orbital elements:
    2021 NO3                                                 Earth MOID = 0.0236 AU
    Epoch 2021 July 5.0 TT = JDT 2459400.5                  Veres                   
    M 332.25868              (2000.0)            P               Q                  
    n   0.41896843     Peri.  309.11504     +0.84353478     -0.53557213             
    a   1.7688127      Node    83.30243     +0.50439024     +0.76430724             
    e   0.6731766      Incl.    2.31653     +0.18449813     +0.35916144             
    P   2.35           H   23.61          G   0.15           U   9                  
    Residuals in seconds of arc
    210708 X74  0.4+  0.2-    210709 X74  0.2-  0.1-    210710 807  0.0   0.1+
    210708 X74  0.2-  0.5+    210709 X74  0.8-  0.3+    210710 807  0.1+  0.1-
    210708 X74  0.1-  0.4-    210709 X74  1.0-  0.2-    210710 Y00  0.4-  0.1-
    210709 X74  0.1-  0.2+    210709 X74  0.3+  0.3-    210710 Y00  0.3-  0.1+
    210709 X74  0.6+  0.2+    210710 807  0.1-  0.1-    210710 Y00  0.0   0.2+
    
    Ephemeris:
    2021 NO3                 a,e,i = 1.77, 0.67, 2                   q = 0.5781
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 06 11    19 56 17.2 -21 47 49   0.5164  1.4619   143.2    24.6    24.1
    ...
    2021 06 26    20 04 10.4 -23 14 24   0.3084  1.3040   155.9    18.6    22.6
    ...
    2021 07 04    20 07 07.9 -25 20 42   0.2067  1.2156   162.7    14.4    21.4
    ...
    2021 07 10    20 09 18.0 -28 56 09   0.1342  1.1476   166.4    12.0    20.3
    2021 07 11    20 09 45.4 -29 55 50   0.1225  1.1361   166.5    12.0    20.1
    2021 07 12    20 10 16.9 -31 07 49   0.1108  1.1246   166.4    12.3    19.8
    ...
    2021 07 18    20 20 37.0 -50 58 11   0.04459 1.0550   149.5    29.3    18.3
    ...
    2021 07 26    07 59 29.4 -04 12 20   0.06031 0.9610    24.3   154.2    26.8
    ...
    2021 08 10    08 07 07.1 +13 35 57   0.2406  0.7876    17.5   157.2    30.1
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-N91
    


    Read MPEC 2021-N90 Read MPEC 2021-N92


    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)