[Iaude] MPEC X124: 2020 XQ3 [a=2.43,e=0.55,i=2.3,H=24.9]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Fri Dec 11 22:44:27 EST 2020


M.P.E.C. 2020-X124                            Issued 2020 December 12, 03:43 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 XQ3                                    


Observations:
     K20X03Q* C2020 12 07.23187002 38 25.994+25 14 26.02         22.31wUEX124F51
     K20X03Q  C2020 12 07.25877902 38 30.083+25 14 35.66         22.45wUEX124F51
     K20X03Q  C2020 12 07.27217902 38 32.089+25 14 40.04         22.17wUEX124F51
     K20X03Q KC2020 12 08.35714 02 41 42.12 +25 19 23.4          22.1 RoEX124291
     K20X03Q KC2020 12 08.36834 02 41 44.05 +25 19 25.4          21.9 RoEX124291
     K20X03Q KC2020 12 08.37956 02 41 46.00 +25 19 27.1          21.8 RoEX124291
     K20X03Q  C2020 12 09.22197502 44 31.922+25 23 36.52         22.37GVEX124T12
     K20X03Q  C2020 12 09.22616702 44 32.656+25 23 38.05         22.55GVEX124T12
     K20X03Q KC2020 12 09.31993 02 44 46.16 +25 23 51.0          22.5 RoEX124691
     K20X03Q KC2020 12 09.35750 02 44 52.87 +25 23 57.8          21.8 RoEX124691
     K20X03Q KC2020 12 10.13614002 47 32.23 +25 27 28.7          22.4 VuEX124H21
     K20X03Q KC2020 12 10.14222402 47 33.33 +25 27 30.3          22.1 VuEX124H21
     K20X03Q  C2020 12 11.21774502 51 23.555+25 32 26.61         21.90GVEX124F51
     K20X03Q  C2020 12 11.23062402 51 26.084+25 32 30.93         21.90GVEX124F51
     K20X03Q  C2020 12 11.25636202 51 31.144+25 32 39.64         22.04GVEX124F51

Observer details:
291 LPL/Spacewatch II.  Observer M. T. Read.  1.8-m f/2.7 reflector + CCD.
691 Steward Observatory, Kitt Peak-Spacewatch.  Observer M. T. Read.  0.9-m
    f/3 reflector + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz, M.
    Willman, K. Chambers.  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.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  1.3-m f/4.0
    astrograph + CCD.
T12 Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m).  Observer D. Fohring.
    Measurer D. J. Tholen.  2.24-m f/10.1 reflector + CCD.

Orbital elements:
2020 XQ3                                                 Earth MOID = 0.1080 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
M 357.26970              (2000.0)            P               Q
n   0.25942440     Peri.  168.23502     -0.04991097     -0.99798812
a   2.4347937      Node   284.61662     +0.91303030     -0.02972487
e   0.5518382      Incl.    2.31568     +0.40482658     -0.05600137
P   3.80           H   24.9           G   0.15           U   6
Residuals in seconds of arc
201207 F51  0.1+  0.0     201208 291  0.7-  0.3+    201210 H21  0.0   0.4+
201207 F51  0.1+  0.1+    201209 T12  0.0   0.0     201210 H21  0.2-  0.3+
201207 F51  0.1-  0.0     201209 T12  0.0   0.0     201211 F51  0.1-  0.2+
201208 291  0.7-  0.3+    201209 691  1.1+  0.3+    201211 F51  0.2-  0.0
201208 291  0.7-  0.4+    201209 691  0.3+  0.7+    201211 F51  0.2+  0.0

Ephemeris:
2020 XQ3                 a,e,i = 2.43, 0.55, 2                   q = 1.0912
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 11 12    02 06 58.3 +23 31 45   0.2378  1.2205   164.3    12.7    23.0
...
2020 11 27    02 17 06.2 +24 28 28   0.1820  1.1523   153.4    22.6    22.6
...
2020 12 05    02 32 23.1 +25 04 01   0.1591  1.1251   149.3    26.6    22.4
...
2020 12 11    02 50 33.5 +25 31 30   0.1448  1.1097   147.6    28.4    22.2
2020 12 12    02 54 14.7 +25 35 46   0.1427  1.1075   147.5    28.6    22.2
2020 12 13    02 58 07.9 +25 39 50   0.1406  1.1055   147.4    28.7    22.1
...
2020 12 19    03 25 52.5 +25 57 31   0.1302  1.0961   147.7    28.7    21.9
...
2020 12 27    04 14 16.5 +25 44 28   0.1219  1.0912   150.6    26.3    21.7
...
2021 01 11    05 59 34.3 +22 11 02   0.1294  1.1054   159.2    18.4    21.6

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-X124




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