[Iaude] MPEC X118: 2020 YW [a=1.01,e=0.64,i=10.3,H=23.0]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sun Dec 5 10:02:34 EST 2021


M.P.E.C. 2021-X118                             Issued 2021 December 5, 15:01 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 at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                    2020 YW                                     


                           Revision to MPEC 2020-Y49                            

Additional Observations:
     K20Y00W  C2019 12 03.51408608 25 12.029+27 54 52.69         21.48GVEX118F52
     K20Y00W  C2019 12 03.52947108 25 15.777+27 55 25.84         21.26GVEX118F52
     K20Y00W  C2019 12 03.54144508 25 18.685+27 55 51.45         21.32GVEX118F52
     K20Y00W  C2019 12 10.49861709 09 25.085+33 41 19.60         21.15GVEX118F51
     K20Y00W  C2019 12 10.51090809 09 31.884+33 42 10.68         21.70GVEX118F51
     K20Y00W  C2019 12 10.53533109 09 45.361+33 43 52.04         20.99GVEX118F51
     K20Y00W KC2021 12 03.42016105 56 54.87 +27 22 26.9          21.16GVEX118I52
     K20Y00W KC2021 12 03.42176905 56 54.47 +27 22 29.9          21.47GVEX118I52
     K20Y00W KC2021 12 03.42337605 56 54.05 +27 22 32.8          21.73GVEX118I52

Observer details:
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, K. Chambers, T. Dukes, T.
    Lowe, A. Schultz, I. Smith.  Measurers S. Chastel, M. Huber, 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, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
    H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, D. Rankin, R. L.
    Seaman, F. C. Shelly, K. W. Wierzchos.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
191203 F52 1.45+ 0.17+    211203 I52 1.10+ 0.20+    MPO600179    +370 days

Orbital elements:
2020 YW                                                  Earth MOID = 0.0654 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Veres                   
M 328.71400              (2000.0)            P               Q                  
n   0.97056777     Peri.  150.16431     -0.75341734     +0.63571552             
a   1.0103042      Node    70.28884     -0.63307711     -0.63225456             
e   0.6408305      Incl.   10.28063     -0.17769548     -0.44285432             
P   1.02           H   23.02          G   0.15           U   1                  
Residuals in seconds of arc
191203 F52  0.1-  0.1+    201217 113  0.1+  0.4+    201219 K87  0.0   0.1-
191203 F52  0.0   0.1+    201217 113  0.2-  0.5+    201219 033  0.4-  0.6-
191203 F52  0.1+  0.1-    201217 113  0.1+  0.4+    201219 033  0.2-  0.2-
191210 F51  0.2-  0.2-    201217 204  0.5-  0.1+    201219 033  0.0   0.3-
191210 F51  0.1+  0.2-    201217 204  0.2-  0.1+    201219 033  0.1-  0.4-
191210 F51  0.1+  0.0     201217 204  0.0   0.3+    201219 I52  0.1-  0.2-
201217 703  0.4+  0.1+    201218 033  0.1+  0.8-    201219 I52  0.3-  0.2-
201217 703  0.7+  0.1-    201218 033 (0.7+  1.0-)   201219 I52  0.1+  0.3-
201217 T05  0.2+  0.0     201218 033  0.2-  0.1+    201219 I52  0.1-  0.4+
201217 T05  1.6+  0.4-    201218 H21  0.2-  0.3+    201220 I52  0.3+  0.1+
201217 T05  0.1+  0.4+    201218 H21  0.3-  0.1+    201220 I52  0.4+  0.0
201217 T05  0.4-  0.7+    201218 H21  0.1-  0.2+    201220 I52  0.1+  0.1-
201217 T05  1.1+  0.6+    201218 H21  0.1+  0.3+    201220 I52  0.1+  0.2+
201217 T05  0.1+  0.4+    201218 033  0.3-  0.1-    201220 Z99  0.3+  0.1-
201217 T05  0.2-  0.8-    201218 033  0.1-  0.2-    201220 Z99  0.2+  0.2-
201217 T05  0.7+  0.1+    201218 033  0.1-  0.2-    201220 Z99  0.2+  0.4-
201217 N88  0.2-  0.3+    201218 104 (0.8+  1.0-)   201221 I52  0.1-  0.0
201217 N88  0.2-  0.2-    201218 104  0.8+  0.5-    201221 I52  0.0   0.1+
201217 N88  0.1-  0.4+    201218 104 (0.7+  1.1-)   201221 I52  0.1+  0.0
201217 N88  0.1-  0.2+    201218 113  0.3+  0.0     201221 I52  0.1+  0.3+
201217 N88  0.1+  0.3+    201218 113  0.1+  0.1-    201221 033  0.1-  0.2-
201217 033  0.0   0.3-    201218 113  0.4+  0.4+    201221 033  0.0   0.0
201217 033  0.1-  0.2-    201218 W34  0.1-  0.1+    201221 033  0.1-  0.1-
201217 033  0.0   0.3-    201218 W34  0.4+  0.2+    211203 I52  0.0   0.2-
201217 587  0.1-  0.4+    201218 W34  0.1-  0.5-    211203 I52  0.3+  0.0
201217 587  0.1-  0.6+    201219 K87  0.3-  0.0     211203 I52  0.3+  0.1+
201217 587  0.1-  0.6+    201219 K87  0.0   0.1+

Ephemeris:
2020 YW                  a,e,i = 1.01, 0.64, 10                  q = 0.3629
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 11 05    06 33 17.7 +20 27 21   0.6363  1.4511   124.6    34.2    24.3
...
2021 11 20    06 28 14.5 +22 43 20   0.4387  1.3576   141.1    27.2    23.1
...
2021 11 28    06 14 37.0 +25 02 56   0.3424  1.2996   152.3    20.7    22.3
...
2021 12 04    05 54 26.6 +27 40 06   0.2765  1.2521   162.5    13.7    21.5
2021 12 05    05 49 49.1 +28 11 47   0.2662  1.2439   164.3    12.4    21.4
2021 12 06    05 44 44.1 +28 45 10   0.2561  1.2355   166.1    11.1    21.2
...
2021 12 12    05 01 31.8 +32 37 26   0.2012  1.1832   169.9     8.4    20.5
...
2021 12 20    03 11 04.8 +37 05 00   0.1501  1.1076   143.1    32.2    20.5
...
2022 01 04    22 54 28.5 +20 45 46   0.1649  0.9463    72.3    98.2    22.5

A. U. Tomatic                (C) Copyright 2021 MPC           M.P.E.C. 2021-X118




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