[Iaude] MPEC J50: 2021 JY [a=1.58,e=0.57,i=35.9,H=18.6,PHA]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Tue May 4 16:48:38 EDT 2021


M.P.E.C. 2021-J50                                   Issued 2021 May 4, 20:47 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

                                    2021 JY                                     


Observations:
     K21J00Y* C2021 05 01.54806716 45 06.65 -35 55 41.1          18.20oVEJ050T08
     K21J00Y  C2021 05 01.55174916 45 05.09 -35 55 54.7          18.12oVEJ050T08
     K21J00Y  C2021 05 01.55727816 45 02.73 -35 56 15.0          18.44oVEJ050T08
     K21J00Y  C2021 05 01.56926216 44 57.79 -35 56 58.8          18.00oVEJ050T08
     K21J00Y KC2021 05 02.55586 16 38 14.99 -36 55 26.0          18.8 VqEJ050E23
     K21J00Y KC2021 05 02.56975 16 38 09.12 -36 56 14.4                qEJ050E23
     K21J00Y KC2021 05 02.58363 16 38 03.29 -36 57 03.6          18.4 VqEJ050E23
     K21J00Y KC2021 05 02.59815 16 37 57.08 -36 57 52.8          17.7 VqEJ050E23
     K21J00Y KC2021 05 03.04765616 34 52.66 -37 23 30.1          18.2 GXEJ050Y00
     K21J00Y KC2021 05 03.04877316 34 52.22 -37 23 34.0          17.5 GXEJ050Y00
     K21J00Y KC2021 05 03.04961216 34 51.84 -37 23 37.1          18.4 GXEJ050Y00
     K21J00Y KC2021 05 03.05079916 34 51.38 -37 23 40.8          18.4 GXEJ050Y00
     K21J00Y  C2021 05 03.62242216 30 53.35 -37 55 07.9          17.9 RtEJ050474
     K21J00Y  C2021 05 03.62342616 30 52.84 -37 55 11.3          17.5 RtEJ050474
     K21J00Y  C2021 05 03.62543516 30 52.04 -37 55 17.5          17.9 RtEJ050474
     K21J00Y  C2021 05 03.62643916 30 51.59 -37 55 20.1          18.1 RtEJ050474
     K21J00Y  C2021 05 03.62744416 30 51.19 -37 55 24.3          17.4 RtEJ050474
     K21J00Y KC2021 05 04.59420 16 24 10.39 -38 46 04.5          17.9 RqEJ050E94
     K21J00Y KC2021 05 04.63460 16 23 53.27 -38 48 06.1          18.0 RqEJ050E94
     K21J00Y KC2021 05 04.65523 16 23 44.38 -38 49 07.5          18.0 RqEJ050E94

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.
E23 Arcadia.  Observer A. Hidas.  0.35-m f/1.9 reflector + CCD.
E94 Possum Observatory, Gisborne.  Observer J. Drummond.  0.41-m f/4.5
    Newtonian reflector + CCD.
T08 ATLAS-MLO, Mauna Loa.  Observers L. Denneau, J. Tonry, A. Heinze, H.
    Weiland.  Measurers L. Denneau, J. Tonry, A. Heinze, H. Weiland, A.
    Fitzsimmons, J. Robinson, N. Erasmus.  0.5-m reflector + CCD.
Y00 SONEAR Observatory, Oliveira.  Observers C. Jacques, E. Pimentel, J.
    Barros.  Measurer C. Jacques.  0.45-m f/2.9 reflector + CCD.

Orbital elements:
2021 JY                                             PHA, Earth MOID = 0.0421 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres                   
M 334.59502              (2000.0)            P               Q                  
n   0.49411709     Peri.   76.49110     -0.38526454     -0.82632984             
a   1.5845872      Node    44.48189     +0.43904364     -0.55567946             
e   0.5738299      Incl.   35.89299     +0.81167229     -0.09164789             
P   1.99           H   18.66          G   0.15           U   9                  
Residuals in seconds of arc
210501 T08  0.1+  0.1+    210502 E23  0.9-  1.0+    210503 474  0.2+  0.1+
210501 T08  0.1-  0.0     210503 Y00  0.6-  0.0     210503 474  0.1-  0.8+
210501 T08  0.5-  0.0     210503 Y00  0.3-  0.1-    210503 474  0.2+  0.2-
210501 T08  0.5+  0.1-    210503 Y00  0.6-  0.3-    210504 E94  0.3+  0.3-
210502 E23  0.6+  0.5-    210503 Y00  0.1-  0.1+    210504 E94  0.7+  0.1-
210502 E23  0.1+  0.0     210503 474  0.6+  0.0     210504 E94  1.0-  0.3+
210502 E23  0.3+  0.6-    210503 474  0.3-  0.2-

Ephemeris:
2021 JY                  a,e,i = 1.58, 0.57, 36                  q = 0.6753
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 04 04    18 56 37.8 +00 24 51   0.3751  1.0609    88.8    70.5    19.1
...
2021 04 19    18 00 11.2 -19 46 12   0.3373  1.2035   118.8    47.0    18.5
...
2021 04 27    17 15 02.0 -30 43 39   0.3459  1.2777   135.9    33.3    18.3
...
2021 05 03    16 35 11.2 -37 20 46   0.3695  1.3320   146.6    24.7    18.3
2021 05 04    16 28 17.4 -38 15 19   0.3749  1.3410   148.0    23.5    18.3
2021 05 05    16 21 22.5 -39 06 17   0.3806  1.3499   149.3    22.4    18.3
...
2021 05 11    15 40 45.1 -42 58 18   0.4230  1.4026   154.1    18.4    18.5
...
2021 05 19    14 54 10.2 -45 22 05   0.4975  1.4708   152.4    18.6    18.9
...
2021 06 03    14 01 10.1 -45 32 15   0.6772  1.5922   139.7    24.3    20.0

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-J50




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