[Iaude] MPEC X37: 2020 XS [a=1.26,e=0.38,i=50.1,H=21.2]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sun Dec 6 23:05:51 EST 2020


M.P.E.C. 2020-X37                              Issued 2020 December 7, 04:04 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 XS                                     


Observations:
     K20X00S* C2020 12 04.23323303 06 09.40 +20 25 07.1          20.26GVEX037G96
     K20X00S  C2020 12 04.23840403 06 08.72 +20 24 32.8          20.47GVEX037G96
     K20X00S  C2020 12 04.24358603 06 08.03 +20 23 58.3          20.51GVEX037G96
     K20X00S  C2020 12 04.24875403 06 07.32 +20 23 23.8          20.52GVEX037G96
     K20X00S KC2020 12 04.30313 03 06 00.18 +20 17 22.2          20.6 RoEX037291
     K20X00S KC2020 12 04.31290 03 05 58.92 +20 16 17.1          20.5 RoEX037291
     K20X00S KC2020 12 04.32273 03 05 57.64 +20 15 11.8          20.5 RoEX037291
     K20X00S KC2020 12 04.35995203 05 52.82 +20 11 04.4          20.28GVEX037I52
     K20X00S KC2020 12 04.36205403 05 52.60 +20 10 50.2          20.50GVEX037I52
     K20X00S KC2020 12 05.06396803 04 31.53 +18 54 42.0          21.0 VuEX037H21
     K20X00S KC2020 12 05.06977803 04 30.85 +18 54 05.0          20.1 VuEX037H21
     K20X00S KC2020 12 05.07953903 04 30.08 +18 53 03.9          20.86GVEX037I52
     K20X00S KC2020 12 05.08121903 04 29.84 +18 52 53.1          20.90GVEX037I52
     K20X00S KC2020 12 05.08290003 04 29.67 +18 52 41.9                VEX037I52
     K20X00S KC2020 12 05.08458103 04 29.50 +18 52 31.7                VEX037I52
     K20X00S KC2020 12 05.13643 03 04 22.96 +18 47 01.0          20.2 RqEX037H36
     K20X00S KC2020 12 05.14730 03 04 21.61 +18 45 51.7          20.0 RqEX037H36
     K20X00S KC2020 12 05.15816 03 04 20.32 +18 44 43.0          20.1 RqEX037H36
     K20X00S KC2020 12 05.33108 03 03 59.81 +18 26 29.8          20.6 RoEX037691
     K20X00S KC2020 12 05.34014 03 03 58.72 +18 25 32.2                oEX037691
     K20X00S KC2020 12 06.08574003 02 40.77 +17 08 46.3          20.55GVEX037I52
     K20X00S KC2020 12 06.08699903 02 40.62 +17 08 38.8          20.15GVEX037I52
     K20X00S KC2020 12 06.08825903 02 40.46 +17 08 31.4          20.62GVEX037I52
     K20X00S KC2020 12 06.08951903 02 40.27 +17 08 25.2          19.50GVEX037I52
     K20X00S KC2020 12 07.09707203 01 01.10 +15 29 27.2          20.66GVEX037I52
     K20X00S KC2020 12 07.09833603 01 00.96 +15 29 20.1          20.47GVEX037I52
     K20X00S KC2020 12 07.09959703 01 00.86 +15 29 12.6          21.25GVEX037I52
     K20X00S KC2020 12 07.10085803 01 00.71 +15 29 05.3          20.15GVEX037I52

Observer details:
291 LPL/Spacewatch II.  Observer T. H. Bressi.  1.8-m f/2.7 reflector + CCD.
691 Steward Observatory, Kitt Peak-Spacewatch.  Observer T. H. Bressi.  0.9-m
    f/3 reflector + CCD.
G96 Mt. Lemmon Survey.  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.  1.5-m reflector + 10K CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.76-m f/3.0
    astrograph + CCD.
H36 Sandlot Observatory, Scranton.  Observer G. Hug.  0.56-m reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observers D. Rankin, D. C. Fuls.
    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 XS                                                  Earth MOID = 0.1086 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
M  86.72242              (2000.0)            P               Q
n   0.69784014     Peri.   58.43404     +0.29613626     +0.64383922
a   1.2588252      Node   246.82417     -0.89886889     +0.43765986
e   0.3786719      Incl.   50.12675     +0.32301399     +0.62763437
P   1.41           H   21.2           G   0.15           U   9
Residuals in seconds of arc
201204 G96  0.1-  0.3-    201205 H21  0.7+  0.1-    201206 I52  0.5+  0.2-
201204 G96  0.1-  0.2-    201205 I52  0.0   0.0     201206 I52  0.3+  0.1-
201204 G96  0.1-  0.2-    201205 I52  0.6-  0.1-    201206 I52  0.1-  0.1+
201204 G96  0.5-  0.2-    201205 I52  0.2-  0.6-    201206 I52  0.8-  1.5+
201204 291  0.4-  0.1+    201205 I52  0.3+  0.1-    201207 I52  0.0   0.0
201204 291  0.2-  0.1+    201205 H36  0.8+  0.1-    201207 I52  0.2-  0.1+
201204 291  0.1-  0.2+    201205 H36  0.3+  0.3-    201207 I52  0.1+  0.2-
201204 I52  0.1-  0.8+    201205 H36  0.7+  0.0     201207 I52  0.2-  0.3-
201204 I52  0.6+  0.6+    201205 691  0.4-  0.2-
201205 H21  0.5+  0.1-    201205 691  0.7-  0.5-

Ephemeris:
2020 XS                  a,e,i = 1.26, 0.38, 50                  q = 0.7821
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 11 07    07 33 22.2 +73 25 38   0.3739  1.1776   110.9    51.8    21.3
...
2020 11 22    03 53 53.1 +48 31 07   0.3078  1.2669   151.6    21.8    20.2
...
2020 11 30    03 16 52.7 +29 03 47   0.3369  1.3121   163.0    12.7    20.2
...
2020 12 06    03 02 48.7 +17 17 40   0.3876  1.3448   154.1    18.6    20.7
2020 12 07    03 01 09.4 +15 38 57   0.3979  1.3501   152.3    19.9    20.8
2020 12 08    02 59 39.5 +14 05 32   0.4086  1.3554   150.4    21.1    21.0
...
2020 12 14    02 53 22.4 +06 25 37   0.4809  1.3865   139.7    27.3    21.5
...
2020 12 22    02 50 14.3 -00 17 21   0.5918  1.4260   127.9    33.0    22.2
...
2021 01 06    02 53 54.1 -06 38 59   0.8211  1.4939   111.5    37.8    23.2

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-X37




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