[Iaude] MPEC X178: 2021 XV4 [a=2.12,e=0.70,i=1.7,H=28.6]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Thu Dec 9 20:41:04 EST 2021


M.P.E.C. 2021-X178                            Issued 2021 December 10, 01:39 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 XV4                                    


Observations:
     K21X04V* C2021 12 08.29164305 04 49.65 +24 43 43.2          20.85GVEX178G96
     K21X04V  C2021 12 08.29683205 04 50.31 +24 43 38.1          21.23GVEX178G96
     K21X04V  C2021 12 08.30202205 04 50.93 +24 43 32.9          20.98GVEX178G96
     K21X04V KC2021 12 08.37907605 05 01.14 +24 41 58.1                VEX178V06
     K21X04V KC2021 12 08.38134505 05 01.51 +24 41 54.7          21.28GVEX178V06
     K21X04V KC2021 12 08.38247905 05 01.66 +24 41 53.6          21.29GVEX178V06
     K21X04V  C2021 12 09.31079205 11 42.72 +24 13 25.1          19.95GVEX178G96
     K21X04V  C2021 12 09.31641205 11 45.48 +24 13 07.3          20.60GVEX178G96
     K21X04V  C2021 12 09.32204105 11 48.25 +24 12 49.2          19.66GVEX178G96
     K21X04V KC2021 12 09.91399105 23 34.76 +23 15 54.5          18.1 GVEX178L06
     K21X04V KC2021 12 09.91810005 23 41.79 +23 15 17.2          18.3 GVEX178L06
     K21X04V KC2021 12 09.91913205 23 43.57 +23 15 07.8          18.1 GVEX178L06
     K21X04V KC2021 12 09.92016105 23 45.31 +23 14 58.6          18.3 GVEX178L06
     K21X04V KC2021 12 09.94279705 24 25.41 +23 11 23.8          18.6 GVEX178204
     K21X04V KC2021 12 09.94982405 24 38.13 +23 10 14.0                VEX178204
     K21X04V KC2021 12 09.95296605 24 43.42 +23 09 40.6          18.6 GVEX178L06
     K21X04V KC2021 12 09.95303505 24 43.57 +23 09 40.2          18.4 GVEX178L06
     K21X04V KC2021 12 09.95378705 24 44.96 +23 09 32.4          18.4 GVEX178L06
     K21X04V KC2021 12 09.95684905 24 51.03 +23 09 02.0                VEX178204

Observer details:
204 Schiaparelli Observatory.  Observer L. Buzzi.  0.84-m f/3.5 reflector +
    CCD.
G96 Mt. Lemmon Survey.  Observer R. A. Kowalski.  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.  1.5-m reflector + 10K CCD.
L06 Sormano 2 Observatory, Bellagio Via Lattea.  Observers E. Valli, G.
    Ventre.  Measurer P. Sicoli.  0.36-m Schmidt-Cassegrain + CCD.
V06 Catalina Sky Survey-Kuiper.  Observer H. Groeller.  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.  1.55-m reflector + 1K CCD.

Orbital elements:
2021 XV4                                                 Earth MOID = 0.0005 AU
Epoch 2022 Jan. 21.0 TT = JDT 2459600.5                 Veres                   
M 358.86281              (2000.0)            P               Q                  
n   0.31915053     Peri.  264.14908     -0.94973048     -0.31177012             
a   2.1206663      Node   257.68243     +0.29753693     -0.87056597             
e   0.7046161      Incl.    1.67078     +0.09738479     -0.38067609             
P   3.09           H   28.64          G   0.15           U   8                  
Residuals in seconds of arc
211208 G96  0.1+  0.1-    211209 G96  0.0   0.0     211209 204  0.1+  0.2+
211208 G96  0.2+  0.0     211209 G96  0.0   0.1-    211209 L06  0.7-  0.2-
211208 G96  0.1-  0.0     211209 L06  0.0   0.0     211209 L06  0.4-  0.1+
211208 V06  0.3-  0.0     211209 L06  0.4+  0.2-    211209 L06  0.3-  0.0
211208 V06  0.2+  0.2-    211209 L06  0.4+  0.1-    211209 204  0.0   0.2+
211208 V06  0.0   0.4+    211209 L06  0.2+  0.0
211209 G96  0.2-  0.1+    211209 204  0.1-  0.3-

Ephemeris:
2021 XV4                 a,e,i = 2.12, 0.70, 2                   q = 0.6264
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2021 11 10    04 50 34.4 +24 58 52   0.3824  1.3426   153.1    19.5    28.2
...
2021 11 25    04 55 37.6 +25 13 21   0.1868  1.1699   166.9    11.0    26.0
...
2021 12 03    04 57 55.2 +25 11 32   0.09063 1.0761   174.2     5.3    24.0
...
2021 12 09    05 08 46.5 +24 27 28   0.02070 1.0057   177.8     2.1    20.5
2021 12 10    05 26 18.0 +23 07 19   0.0091660.9940   175.6     4.4    18.8
2021 12 11    15 02 20.7 -29 38 51   0.0027730.9823    29.6   150.3    24.3
...
2021 12 17    16 53 22.2 -25 29 52   0.07223 0.9131    10.4   168.8
...
2021 12 25    16 57 12.5 -25 18 17   0.1682  0.8246    17.5   159.0    35.0
...
2022 01 09    17 10 17.5 -25 10 57   0.3707  0.6864    29.7   134.8    31.9

M. P. C. Staff               (C) Copyright 2021 MPC           M.P.E.C. 2021-X178




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