[Iaude] MPEC X74: 2020 XB2 [a=1.76,e=0.56,i=2.4,H=26.0]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Wed Dec 9 03:55:55 EST 2020


M.P.E.C. 2020-X74                              Issued 2020 December 9, 08:54 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 XB2                                    


Observations:
     K20X02B* C2020 12 07.37520604 43 48.03 +01 40 19.0          19.36GVEX074G96
     K20X02B  C2020 12 07.37571504 43 59.592+01 41 16.60         19.56wUEX074F52
     K20X02B  C2020 12 07.38035904 43 50.58 +01 42 11.2          19.54GVEX074G96
     K20X02B  C2020 12 07.38551204 43 53.15 +01 44 04.1          19.44GVEX074G96
     K20X02B  C2020 12 07.38665004 44 04.797+01 45 17.56         19.67wUEX074F52
     K20X02B  C2020 12 07.39066504 43 55.75 +01 45 57.6          19.58GVEX074G96
     K20X02B KC2020 12 07.43082 04 44 15.95 +02 00 30.6          19.5 RoEX074691
     K20X02B KC2020 12 07.43467 04 44 17.89 +02 01 53.1          19.7 RoEX074691
     K20X02B mC2020 12 07.43826104 44 19.67 +02 03 08.7          20.12GVEX074I52
     K20X02B KC2020 12 07.43851 04 44 19.83 +02 03 14.9          19.5 RoEX074691
     K20X02B mC2020 12 07.43856504 44 19.84 +02 03 15.8                VEX074I52
     K20X02B mC2020 12 07.43886904 44 19.92 +02 03 22.0          19.67GVEX074I52
     K20X02B mC2020 12 07.43917304 44 20.09 +02 03 28.9          19.51GVEX074I52
     K20X02B  C2020 12 08.27178504 51 08.79 +06 16 27.5          19.54GVEX074G96
     K20X02B  C2020 12 08.27201704 51 08.90 +06 16 31.8          19.61GVEX074G96
     K20X02B  C2020 12 08.27224904 51 08.98 +06 16 35.0          19.97GVEX074G96
     K20X02B  C2020 12 08.27248104 51 09.05 +06 16 39.0          19.90GVEX074G96
     K20X02B IC2020 12 08.27309 04 51 06.27 +06 16 28.4          19.3 RqEX074H36
     K20X02B KC2020 12 08.28090 04 51 08.85 +06 18 29.5          19.4 RqEX074H36
     K20X02B KC2020 12 08.28873 04 51 11.43 +06 20 30.5          19.3 RqEX074H36
     K20X02B KC2020 12 09.23668204 56 39.73 +09 46 13.5          20.4 VuEX074H21
     K20X02B KC2020 12 09.23958804 56 40.42 +09 46 45.5          20.3 VuEX074H21
     K20X02B KC2020 12 09.24384804 56 41.39 +09 47 32.7          20.3 VuEX074H21
     K20X02B KC2020 12 09.26062904 56 49.23 +09 50 55.9          20.13GVEX074I52
     K20X02B KC2020 12 09.26161704 56 49.47 +09 51 06.6          19.69GVEX074I52
     K20X02B KC2020 12 09.26260904 56 49.68 +09 51 17.7          20.17GVEX074I52
     K20X02B KC2020 12 09.26359704 56 49.93 +09 51 28.3          19.90GVEX074I52

Observer details:
691 Steward Observatory, Kitt Peak-Spacewatch.  Observer T. H. Bressi.  0.9-m
    f/3 reflector + CCD.
F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, T. Dukes, T. Lowe, A.
    Schultz, M. Willman.  Measurers K. Chambers, S. Chastel, T. de Boer, L.
    Denneau, J. Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y.
    Ramanjooloo, R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey.  Observer T. A. Pruyne.  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. C. Fuls, 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.  1.0-m
    reflector + CCD.

Orbital elements:
2020 XB2                                                 Earth MOID = 0.0147 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Bell                    
M  23.93662              (2000.0)            P               Q                  
n   0.42100844     Peri.  273.84152     +0.99464016     -0.09419203             
a   1.7630942      Node    91.56681     +0.10338506     +0.91226224             
e   0.5582192      Incl.    2.44518     -0.00157315     +0.39862948             
P   2.34           H   26.00          G   0.15           U   7                  
Residuals in seconds of arc
201207 G96 (0.0-  1.1+)   201207 691 (0.0+  1.4-)   201209 H21  0.0-  0.0-
201207 F52  0.1-  0.0-    201207 I52  0.7+  0.4+    201209 H21  0.0-  0.0-
201207 F52  0.1-  0.0-    201207 I52  0.5-  0.0+    201209 H21  0.1+  0.1-
201207 G96  0.2-  0.2-    201207 I52  0.2-  0.4+    201209 H21  0.1+  0.1-
201207 G96  0.2-  0.5-    201208 G96  0.2-  0.6-    201209 H21  0.4-  0.2+
201207 F52  0.0+  0.2+    201208 G96  0.2+  0.1+    201209 H21  0.4-  0.2+
201207 F52  0.0+  0.2+    201208 G96  0.3+  0.2-    201209 I52  0.1-  0.1+
201207 G96  0.3+  0.0+    201208 G96  0.2+  0.2+    201209 I52  0.1+  0.1-
201207 691  0.0+  0.6-    201208 H36  0.8+  0.5+    201209 I52  0.2-  0.1+
201207 691  0.1+  0.7-    201208 H36  0.1+  1.4+    201209 I52  0.1+  0.1-
201207 I52  0.4+  0.2-    201208 H36 (0.6-  2.4+)

Ephemeris:
2020 XB2                 a,e,i = 1.76, 0.56, 2                   q = 0.7789
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 11 09    17 25 50.3 -30 35 16   0.2189  0.8249    36.5   134.4    28.5
...
2020 11 24    17 50 28.6 -37 30 07   0.08437 0.9148    29.5   147.9    28.5
...
2020 12 02    20 41 51.7 -65 39 50   0.02202 0.9746    58.7   120.2    22.5
...
2020 12 08    04 49 11.1 +05 04 18   0.03964 1.0229   162.2    17.1    19.9
2020 12 09    04 55 27.5 +09 02 19   0.04751 1.0311   166.1    13.3    20.2
2020 12 10    05 00 00.6 +11 52 19   0.05559 1.0394   168.8    10.6    20.5
...
2020 12 16    05 12 54.6 +19 34 16   0.1064  1.0900   173.7     5.7    21.8
...
2020 12 24    05 19 20.6 +22 50 35   0.1786  1.1590   168.3     9.9    23.2
...
2021 01 08    05 27 41.0 +24 53 04   0.3295  1.2895   155.0    18.8    25.1

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-X74




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