[Iaude] MPEC X158: 2020 UM8 [a=2.13,e=0.52,i=2.3,H=25.2]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sun Dec 13 23:34:07 EST 2020


M.P.E.C. 2020-X158                            Issued 2020 December 14, 04:32 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 UM8                                    


Observations:
     K20U08M*!C2020 10 18.04098 23 33 35.93 -03 34 28.5          24.7 V EX158W84
     K20U08M !C2020 10 18.06858 23 33 34.54 -03 34 57.2                 EX158W84
     K20U08M !C2020 10 18.15154 23 33 30.33 -03 36 23.2                 EX158W84
     K20U08M  C2020 12 12.22929603 30 43.82 -25 02 31.8          20.95GVEX158G96
     K20U08M  C2020 12 12.23441503 30 48.88 -25 02 29.5          20.92GVEX158G96
     K20U08M  C2020 12 12.23953603 30 53.97 -25 02 26.2          21.14GVEX158G96
     K20U08M  C2020 12 12.24467903 30 59.11 -25 02 23.5          20.14GVEX158G96
     K20U08M KC2020 12 12.27130203 31 25.54 -25 02 06.3          20.09GVEX158I52
     K20U08M KC2020 12 12.27340303 31 27.73 -25 02 04.1          20.48GVEX158I52
     K20U08M KC2020 12 12.62534403 37 35.96 -24 54 20.7          20.0 GVEX158474
     K20U08M KC2020 12 12.62716203 37 37.86 -24 54 17.8                VEX158474
     K20U08M KC2020 12 12.62898003 37 39.73 -24 54 16.5          20.2 GVEX158474
     K20U08M KC2020 12 12.63080003 37 41.61 -24 54 15.7          20.7 GVEX158474
     K20U08M |C2020 12 13.06559 03 45 37.27 -24 48 30.2          20.4 VuEX158807
     K20U08M |C2020 12 13.06991 03 45 41.62 -24 48 26.1          20.5 VuEX158807
     K20U08M |C2020 12 13.07423 03 45 45.99 -24 48 22.1          20.6 VuEX158807
     K20U08M KC2020 12 13.50212203 53 19.22 -24 39 16.2          20.3 GVEX158474
     K20U08M KC2020 12 13.50335803 53 20.47 -24 39 15.3          20.2 GVEX158474
     K20U08M KC2020 12 13.50459403 53 21.71 -24 39 13.7          20.5 GVEX158474
     K20U08M KC2020 12 13.50583103 53 22.99 -24 39 12.0          20.5 GVEX158474
     K20U08M bC2020 12 13.92286004 00 52.46 -24 32 45.1          20.8 GVEX158L01
     K20U08M bC2020 12 13.92516304 00 54.86 -24 32 41.3          20.4 GVEX158L01
     K20U08M bC2020 12 13.93243104 01 02.31 -24 32 29.9          20.5 GVEX158L01
     K20U08M KC2020 12 14.17171404 05 25.89 -24 25 39.8          20.48GVEX158I52
     K20U08M KC2020 12 14.17269804 05 26.87 -24 25 37.5          20.56GVEX158I52
     K20U08M KC2020 12 14.17368304 05 27.87 -24 25 36.3          19.94GVEX158I52
     K20U08M KC2020 12 14.17466804 05 28.87 -24 25 35.1          20.66GVEX158I52

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.
807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes.
    0.61-m f/6.5 astrograph + 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.
I52 Steward Observatory, Mt. Lemmon Station.  Observer 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.
L01 Visnjan Observatory, Tican.  Observers K. Korlevic, V. Dobos, D. Pujagic.
    Measurers D. Pujagic, K. Korlevic.  1.0-m f/2.9 reflector + CCD.
W84 Cerro Tololo-DECam.  Observer .  Measurer F. Valdes.  4.0-m CTIO
    reflector.

Orbital elements:
2020 UM8                                                 Earth MOID = 0.0437 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
M   3.05161              (2000.0)            P               Q
n   0.31627608     Peri.  237.04091     +0.28947590     -0.95711951
a   2.1334959      Node   196.14389     +0.89112128     +0.27375818
e   0.5242651      Incl.    2.31313     +0.34943750     +0.09475596
P   3.12           H   25.2           G   0.15           U   6
Residuals in seconds of arc
201018 W84  0.1+  0.1-    201212 474  0.5+  0.1-    201213 474  0.3-  0.1+
201018 W84  0.0   0.0     201212 474  0.7+  0.9+    201213 474  0.1-  0.0
201018 W84  0.1-  0.1+    201212 474  0.4+  0.2+    201213 L01  0.0   0.2-
201212 G96  0.3-  0.7+    201212 474  0.2+  1.0-    201213 L01  0.6+  0.1-
201212 G96  0.6-  0.1-    201213 807  0.1+  0.1+    201213 L01  0.8+  0.4-
201212 G96  0.6-  0.1+    201213 807  0.0   0.2+    201214 I52  0.1-  0.5-
201212 G96  0.1-  0.3-    201213 807  0.1+  0.1+    201214 I52  0.4-  0.3+
201212 I52  0.7-  0.8-    201213 474  0.2+  1.0+    201214 I52  0.5-  0.0
201212 I52  0.6+  0.1-    201213 474  0.0   0.2+    201214 I52  0.5-  0.3-

Ephemeris:
2020 UM8                 a,e,i = 2.13, 0.52, 2                   q = 1.0150
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 11 14    23 44 50.3 -12 29 08   0.1225  1.0547   119.2    54.9    22.8
...
2020 11 29    00 46 17.9 -19 37 33   0.07855 1.0202   113.5    62.5    21.9
...
2020 12 07    02 07 42.4 -24 04 14   0.06031 1.0150   118.1    58.9    21.2
...
2020 12 13    03 44 22.4 -24 49 59   0.05370 1.0174   126.6    51.0    20.8
2020 12 14    04 02 15.8 -24 28 12   0.05347 1.0183   128.2    49.4    20.7
2020 12 15    04 20 08.0 -23 57 00   0.05352 1.0194   129.8    47.9    20.7
...
2020 12 21    05 56 00.8 -18 24 18   0.05951 1.0288   138.2    39.6    20.7
...
2020 12 29    07 15 43.9 -09 57 21   0.07918 1.0493   145.2    32.4    21.2
...
2021 01 13    08 15 18.3 +00 09 10   0.1348  1.1087   156.8    20.5    22.1

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-X158




More information about the Iaude mailing list