• MPC Preparation (Info)

  • MPEC 2021-U11 : 2021 TQ21

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    M.P.E.C. 2021-U11                              Issued 2021 October 17, 11:57 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 TQ21                                
    
    
    Observations:
         K21T21Q* C2021 10 13.51187302 27 11.150+13 53 47.32         21.26wUEU011F52
         K21T21Q  C2021 10 13.53617202 27 11.647+13 53 32.59         21.50wUEU011F52
         K21T21Q  C2021 10 13.54832402 27 11.883+13 53 25.34         21.65wUEU011F52
         K21T21Q  C2021 10 13.63167902 27 13.723+13 52 34.23         21.63GVEU011F51
         K21T21Q  C2021 10 13.63232402 27 13.732+13 52 33.65         21.47GVEU011F51
         K21T21Q KC2021 10 14.22424 02 27 33.30 +13 46 33.5          22.1 RoEU011691
         K21T21Q KC2021 10 14.24605 02 27 33.78 +13 46 20.8          21.3 RoEU011691
         K21T21Q KC2021 10 14.25695 02 27 34.03 +13 46 14.4          21.5 RoEU011691
         K21T21Q |C2021 10 16.25892 02 28 29.74 +13 24 46.9          21.0 GVEU011807
         K21T21Q |C2021 10 16.26445 02 28 29.84 +13 24 42.8          21.0 GVEU011807
         K21T21Q |C2021 10 16.26999 02 28 29.95 +13 24 38.8          21.4 GVEU011807
         K21T21Q KC2021 10 17.26948702 28 57.90 +13 12 11.0          21.6 VuEU011H21
         K21T21Q KC2021 10 17.28263502 28 58.12 +13 12 01.3          21.4 VuEU011H21
    
    Observer details:
    691 Steward Observatory, Kitt Peak-Spacewatch.  Observer M. J. Brucker.  0.9-m
        f/3 reflector + CCD.
    807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes, L.
        Horn.  1.00-m f/10.0 astrograph + CCD.
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, T. Lowe, A.
        Schultz, I. Smith.  Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
        Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz, I.
        Smith.  Measurers K. Chambers, S. Chastel, 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.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers T. Linder, R. Holmes, L. Horn.  1.3-m f/4.0 astrograph + CCD.
    
    Orbital elements:
    2021 TQ21                                                Earth MOID = 0.0603 AU
    Epoch 2021 July 5.0 TT = JDT 2459400.5                  Veres                   
    M 300.74091              (2000.0)            P               Q                  
    n   0.33042527     Peri.  262.70860     -0.26678729     -0.96332504             
    a   2.0721469      Node   202.82771     +0.91093325     -0.24229522             
    e   0.5398597      Incl.    4.25716     +0.31468262     -0.11531652             
    P   2.98           H   22.50          G   0.15           U   8                  
    Residuals in seconds of arc
    211013 F52  0.0   0.1+    211014 691  0.0   0.0     211016 807  0.1+  0.2-
    211013 F52  0.1+  0.1-    211014 691  0.1-  0.3+    211017 H21  0.0   0.1+
    211013 F52  0.0   0.0     211014 691  0.1+  0.4+    211017 H21  0.3-  0.2+
    211013 F51  0.0   0.0     211016 807  0.0   0.1+
    211013 F51  0.1-  0.2-    211016 807  0.0   0.1-
    
    Ephemeris:
    2021 TQ21                a,e,i = 2.07, 0.54, 4                   q = 0.9535
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 09 17    02 08 57.3 +15 26 22   0.6456  1.5497   138.7    25.4    23.7
    ...
    2021 10 02    02 20 38.0 +15 09 40   0.4754  1.4349   150.8    19.9    22.7
    ...
    2021 10 10    02 25 23.7 +14 24 27   0.3962  1.3738   157.9    15.9    22.0
    ...
    2021 10 16    02 28 22.8 +13 27 29   0.3422  1.3285   163.4    12.4    21.5
    2021 10 17    02 28 50.4 +13 15 41   0.3336  1.3209   164.3    11.8    21.4
    2021 10 18    02 29 17.6 +13 03 10   0.3252  1.3135   165.3    11.1    21.3
    ...
    2021 10 24    02 31 54.1 +11 30 53   0.2772  1.2690   170.6     7.3    20.8
    ...
    2021 11 01    02 35 31.9 +08 29 37   0.2199  1.2114   173.6     5.3    20.1
    ...
    2021 11 16    02 48 47.1 -02 22 29   0.1317  1.1116   157.2    20.2    19.3
    
    M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-U11
    


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