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  • MPEC 2022-Y157 : 2022 YN4

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    M.P.E.C. 2022-Y157                            Issued 2022 December 25, 14:07 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
    
                                    2022 YN4                                 
    
    
    Observations:
         K22Y04N*1C2022 12 22.27368904 38 14.705-21 40 19.38         20.92GVEY157G96
         K22Y04N 1C2022 12 22.27884104 38 14.204-21 40 40.26         20.80GVEY157G96
         K22Y04N 1C2022 12 22.28399204 38 13.708-21 41 01.57         20.42GVEY157G96
         K22Y04N 1C2022 12 22.28914304 38 13.157-21 41 22.67         20.83GVEY157G96
         K22Y04N KC2022 12 22.35353404 38 06.662-21 45 43.45         20.34GVEY157I52
         K22Y04N KC2022 12 22.35553804 38 06.425-21 45 52.38         20.47GVEY157I52
         K22Y04N KC2022 12 22.35754204 38 06.205-21 45 59.90         20.70GVEY157I52
         K22Y04N |C2022 12 23.06990 04 37 01.69 -22 34 01.1          20.7 VuEY157807
         K22Y04N |C2022 12 23.07751 04 37 00.88 -22 34 32.4          21.0 VuEY157807
         K22Y04N |C2022 12 23.08512 04 37 00.14 -22 35 03.1          20.9 VuEY157807
         K22Y04N KC2022 12 23.22741904 36 46.577-22 45 06.77         20.17GVEY157I52
         K22Y04N KC2022 12 23.23309104 36 45.986-22 45 29.09               VEY157I52
         K22Y04N KC2022 12 23.23426804 36 45.853-22 45 34.56         20.49GVEY157I52
         K22Y04N KC2022 12 23.23543704 36 45.731-22 45 39.17         20.76GVEY157I52
         K22Y04N KC2022 12 23.49239304 36 21.48 -23 02 34.0          20.4 GVEY157474
         K22Y04N KC2022 12 23.49417104 36 21.28 -23 02 41.1          20.5 GVEY157474
         K22Y04N KC2022 12 23.49594904 36 21.11 -23 02 48.1          20.8 GVEY157474
         K22Y04N KC2022 12 23.49772704 36 20.92 -23 02 55.3          20.4 GVEY157474
         K22Y04N KC2022 12 25.45847104 33 18.03 -25 14 55.8          20.6 GVEY157474
         K22Y04N KC2022 12 25.46082904 33 17.81 -25 15 05.5          20.8 GVEY157474
         K22Y04N KC2022 12 25.46318804 33 17.57 -25 15 14.8          20.8 GVEY157474
         K22Y04N KC2022 12 25.46554604 33 17.32 -25 15 24.2          20.8 GVEY157474
    
    Observer details:
    474 Mount John Observatory, Lake Tekapo.  Observers A. C. Gilmore, P. M.
        Kilmartin.  Measurer P. M. Kilmartin.  1.0-m f/7.7 reflector + CCD.
    807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes, L.
        Horn.  0.61-m f/6.5 Dall-Kirkham Astrograph + CCD.
    G96 Mt. Lemmon Survey.  Observer D. C. Fuls.  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.  1.5-m reflector + 10K
        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.
    
    Orbital elements:
    2022 YN4                                                 Earth MOID = 0.1691 AU
    Epoch 2023 Feb. 25.0 TT = JDT 2460000.5                 MPC                     
    M   0.79012              (2000.0)            P               Q                  
    n   0.28329862     Peri.  284.49555     -0.86641216     -0.42754078             
    a   2.2960063      Node   230.89098     +0.47828409     -0.85897809             
    e   0.5889832      Incl.   19.41658     -0.14343740     -0.28171888             
    P   3.48           H   21.20          G   0.15           U   9                  
    Residuals in seconds of arc
    221222 G96  0.4-  0.1+    221223 807  0.2-  0.2-    221223 474  0.0   0.1+
    221222 G96  0.0   0.2+    221223 807  0.3+  0.2+    221223 474  0.1-  0.1+
    221222 G96  0.4+  0.2-    221223 I52  0.1+  0.1-    221225 474  0.2-  0.1+
    221222 G96  0.1+  0.3-    221223 I52  0.0   0.7+    221225 474  0.1+  0.2-
    221222 I52  0.5+  0.5+    221223 I52  0.2-  0.0     221225 474  0.1+  0.0
    221222 I52  0.0   0.4-    221223 I52  0.2-  0.2+    221225 474  0.0   0.1+
    221222 I52  0.3-  0.2+    221223 474  0.1+  0.2-
    221223 807  0.2+  0.0     221223 474  0.1-  0.1-
    
    Ephemeris:
    2022 YN4                 a,e,i = 2.30, 0.59, 19                  q = 0.9437
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2022 11 25    05 10 06.5 +06 08 24   0.4968  1.4595   157.9    14.8    21.3
    ...
    2022 12 10    04 55 46.6 -07 53 45   0.3919  1.3365   149.1    22.2    20.9
    ...
    2022 12 18    04 44 44.0 -16 47 59   0.3594  1.2725   137.5    31.5    20.8
    ...
    2022 12 24    04 35 34.5 -23 36 59   0.3446  1.2259   127.9    39.3    20.9
    2022 12 25    04 34 01.0 -24 44 18   0.3429  1.2182   126.3    40.6    20.9
    2022 12 26    04 32 27.5 -25 51 10   0.3413  1.2107   124.7    41.9    20.9
    ...
    2023 01 01    04 23 11.6 -32 20 17   0.3348  1.1662   115.3    49.7    21.0
    ...
    2023 01 09    04 11 30.1 -40 19 19   0.3321  1.1106   103.8    59.3    21.2
    ...
    2023 01 24    03 51 45.3 -53 27 53   0.3334  1.0220    86.9    74.1    21.5
    
    A. U. Tomatic                (C) Copyright 2022 MPC           M.P.E.C. 2022-Y157
    


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