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  • MPEC 2022-S331 : 2022 SW20

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    M.P.E.C. 2022-S331                           Issued 2022 September 28, 17:02 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
    
                                    2022 SW20                                
    
    
    Observations:
         K22S20W* C2022 09 27.25180421 01 02.394+03 23 42.36         20.99wUES331F52
         K22S20W  C2022 09 27.26267721 00 56.410+03 23 41.93         20.91wUES331F52
         K22S20W  C2022 09 27.27356521 00 50.439+03 23 41.21         20.68wUES331F52
         K22S20W  C2022 09 27.38663520 59 50.672+03 23 31.35         20.66GVES331F52
         K22S20W  C2022 09 27.38726420 59 50.356+03 23 31.06         20.98GVES331F52
         K22S20W KC2022 09 28.10104720 55 49.910+03 22 07.70         20.55GVES331I52
         K22S20W KC2022 09 28.10274520 55 49.290+03 22 07.90         21.45GVES331I52
         K22S20W |C2022 09 28.10831 20 55 38.61 +03 25 52.9          21.3 VuES331807
         K22S20W |C2022 09 28.11811 20 55 35.01 +03 25 52.8          21.4 VuES331807
         K22S20W |C2022 09 28.12138 20 55 33.84 +03 25 51.7          21.6 VuES331807
         K22S20W  C2022 09 28.29105320 54 49.965+03 22 39.99         20.98GVES331F51
    
    Observer details:
    807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes, L.
        Horn.  0.61-m f/6.5 Dall-Kirkham Astrograph + CCD.
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, K. Chambers, 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.
    F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz, I.
        Smith, K. Chambers, T. Dukes.  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.
    I52 Steward Observatory, Mt. Lemmon Station.  Observer D. Rankin.  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.
    
    Orbital elements:
    2022 SW20                                                Earth MOID = 0.0029 AU
    Epoch 2022 Aug. 9.0 TT = JDT 2459800.5                  MPC                     
    M  46.25057              (2000.0)            P               Q                  
    n   1.70690614     Peri.  199.73037     -0.93961262     +0.34223729             
    a   0.6934199      Node     0.29295     -0.26861774     -0.73507364             
    e   0.5659313      Incl.   15.06016     -0.21206753     -0.58526950             
    P   0.58           H   26.45          G   0.15           U   7                  
    Residuals in seconds of arc
    220927 F52  0.1-  0.0     220927 F52  0.1+  0.2-    220928 807  0.3-  0.4+
    220927 F52  0.0   0.1+    220928 I52  0.2-  0.4-    220928 807  0.3+  0.3-
    220927 F52  0.0   0.0     220928 I52  0.1+  0.2-    220928 F51  0.0   0.1+
    220927 F52  0.1+  0.0     220928 807 (1.0-  0.7-)
    
    Ephemeris:
    2022 SW20                a,e,i = 0.69, 0.57, 15                  q = 0.3010
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2022 08 29    08 38 01.1 -02 43 33   0.2138  0.8322    30.2   142.4    29.9
    ...
    2022 09 13    08 21 13.0 -03 13 58   0.08551 0.9489    45.9   130.3    26.7
    ...
    2022 09 21    07 38 59.7 -02 58 12   0.01952 0.9956    63.2   115.8    22.4
    ...
    2022 09 27    21 02 59.2 +03 25 25   0.03116 1.0238   132.5    46.2    20.7
    2022 09 28    20 56 16.7 +03 24 01   0.03941 1.0280   129.9    48.4    21.3
    2022 09 29    20 51 59.0 +03 23 02   0.04769 1.0320   128.0    49.9    21.8
    ...
    2022 10 05    20 42 50.9 +03 21 15   0.09749 1.0528   120.3    55.1    23.5
    ...
    2022 10 13    20 42 14.1 +03 24 06   0.1636  1.0723   113.0    59.0    24.8
    ...
    2022 10 28    20 49 25.6 +03 40 56   0.2839  1.0840   100.9    64.2    26.2
    
    A. U. Tomatic                (C) Copyright 2022 MPC           M.P.E.C. 2022-S331
    


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