• Processing (Info)

    • MPEC 2020-Y73 : 2020 YS1

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    M.P.E.C. 2020-Y73                             Issued 2020 December 21, 13:25 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

                                2020 YS1                                 


Observations:
     K20Y01S  C2020 12 16.39437 08 52 09.08 -10 22 01.1          19.7 GVEY073703
     K20Y01S  C2020 12 16.39963 08 52 00.60 -10 19 32.6          19.2 GVEY073703
     K20Y01S  C2020 12 16.41014 08 51 43.89 -10 14 39.0                VEY073703
     K20Y01S* C2020 12 20.37425908 10 47.56 +03 26 27.6          20.56GVEY073G96
     K20Y01S  C2020 12 20.38062808 10 45.40 +03 27 01.7          20.75GVEY073G96
     K20Y01S  C2020 12 20.38574108 10 43.70 +03 27 29.4          20.58GVEY073G96
     K20Y01S KC2020 12 20.50256808 10 05.59 +03 37 43.4                VEY073I52
     K20Y01S KC2020 12 20.50383108 10 05.18 +03 37 50.0          21.24GVEY073I52
     K20Y01S KC2020 12 20.50509308 10 04.74 +03 37 56.2          20.79GVEY073I52
     K20Y01S 1C2020 12 21.12360 08 07 39.45 +04 26 24.1          21.8 VVEY073033
     K20Y01S 1C2020 12 21.12610 08 07 38.77 +04 26 34.6          21.7 VVEY073033
     K20Y01S KC2020 12 21.31814808 07 04.45 +04 40 58.2          21.07GVEY073I52
     K20Y01S KC2020 12 21.31982808 07 04.02 +04 41 05.7          20.53GVEY073I52
     K20Y01S KC2020 12 21.32150608 07 03.55 +04 41 13.4          20.41GVEY073I52
     K20Y01S KC2020 12 21.32318508 07 03.17 +04 41 19.8          20.79GVEY073I52

Observer details:
033 Karl Schwarzschild Observatory, Tautenburg.  Observers S. Melnikov, U.
    Laux, B. Stecklum.  Measurer B. Stecklum.  1.34-m f/3 Schmidt + CCD.
703 Catalina Sky Survey.  Observer R. A. Kowalski.  Measurers D. Rankin, B.
    Gray, F. C. Shelly.  1.5-m reflector + 10K CCD.
G96 Mt. Lemmon Survey.  Observer D. Rankin.  Measurers E. J. Christensen, G.
    A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, R. A.
    Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D. Rankin, R. L.
    Seaman, F. C. Shelly, K. W. Wierzchos.  1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer G. J. Leonard.
    Measurers E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D.
    Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A.
    Pruyne, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.0-m
    reflector + CCD.

Orbital elements:
2020 YS1                                                 Earth MOID = 0.0073 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres                   
M   7.40960              (2000.0)            P               Q                  
n   0.23745654     Peri.  148.62429     +0.73512481     -0.67645515             
a   2.5827357      Node   254.01213     +0.61195876     +0.69052615             
e   0.6554365      Incl.    2.66637     +0.29171559     +0.25608997             
P   4.15           H   26.10          G   0.15           U   8                  
Residuals in seconds of arc
201216 703  0.7+  0.4-    201220 G96  0.1+  0.2+    201221 033  0.4-  0.3-
201216 703  0.5-  0.4+    201220 I52  0.5+  0.0-    201221 I52  0.2-  0.5-
201216 703  0.4-  0.0-    201220 I52  0.2+  0.1+    201221 I52  0.0+  0.1-
201220 G96  0.2+  0.1+    201220 I52  0.5-  0.2-    201221 I52  0.4-  0.6+
201220 G96  0.1-  0.1-    201221 033  0.1-  0.1+    201221 I52  0.6+  0.1-

Ephemeris:
2020 YS1                 a,e,i = 2.58, 0.66, 3                   q = 0.8899
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 11 21    19 23 45.2 -16 09 04   0.1671  0.8937    51.6   120.0    26.8
...
2020 12 06    19 15 48.2 -20 39 03   0.05748 0.9380    33.7   144.4    27.2
...
2020 12 14    12 14 24.6 -49 03 01   0.0098940.9802    64.9   114.6    20.5
...
2020 12 20    08 12 32.6 +02 52 31   0.04459 1.0186   140.4    38.0    20.9
2020 12 21    08 08 10.4 +04 19 13   0.05160 1.0254   143.0    35.2    21.2
2020 12 22    08 04 46.5 +05 25 46   0.05866 1.0324   145.3    32.9    21.4
...
2020 12 28    07 53 22.9 +08 58 26   0.1020  1.0767   155.1    22.7    22.4
...
2021 01 05    07 45 58.1 +11 02 26   0.1626  1.1408   164.6    13.3    23.2
...
2021 01 20    07 38 59.6 +13 10 27   0.2908  1.2714   170.1     7.6    24.5

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-Y73

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