[Iaude] MPEC Y82: 2014 QX390 [a=1.78,e=0.30,i=28.3,H=19.9]

[mpec at marsden.cfa.harvard.edu]

M.P.E.C. 2019-Y82                             Issued 2019 December 23, 15:00 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

                                   2014 QX390                                   


                           Revision to MPEC 2014-R25                            

Additional Observations:
     K14Qd0X KC2019 12 22.19327912 57 42.559+37 33 01.78         20.9 GVEY082J04
     K14Qd0X KC2019 12 22.20644512 57 43.394+37 32 49.23         20.9 GVEY082J04
     K14Qd0X KC2019 12 22.21962412 57 44.236+37 32 36.85         20.9 GVEY082J04
     K14Qd0X KC2019 12 23.23060612 58 49.702+37 16 14.36         21.7 GVEY082J04
     K14Qd0X KC2019 12 23.24274512 58 50.397+37 16 03.10         22.0 GVEY082J04
     K14Qd0X KC2019 12 23.25487112 58 51.119+37 15 51.55         21.9 GVEY082J04

Observer details:
J04 ESA Optical Ground Station, Tenerife.  Observer D. Abreu.  Measurers M. 
   Micheli, D. Koschny, M. Busch, A. Knofel, E. Schwab.  1.0-m f/4.4 
   reflector + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
191222 J04 0.01- 0.08-    191223 J04 0.01- 0.08-    MPO477754   +0.07 days

Orbital elements:
2014 QX390                                               Earth MOID = 0.4980 AU
Epoch 2020 May 31.0 TT = JDT 2459000.5                  Veres
M  84.53851              (2000.0)            P               Q
n   0.41428917     Peri.   91.07904     +0.11442640     -0.99084407
a   1.7821065      Node   351.30744     +0.61242801     +0.12715082
e   0.3034483      Incl.   28.30270     +0.78220108     +0.04539497
P   2.38           H   19.9           G   0.15           U   2
Residuals in seconds of arc
140803 F51  0.1+  0.0     140828 F51  0.3-  0.0     140924 F51  0.1+  0.1-
140803 F51  0.2+  0.1-    140903 H21  0.3+  0.2+    140924 F51  0.1+  0.2-
140803 F51  0.0   0.1+    140903 H21  0.1+  0.3+    140924 F51  0.1+  0.1-
140803 F51  0.3+  0.2+    140903 H21  0.3+  0.3+    141023 H21  0.1+  0.7+
140822 F51  0.0   0.0     140912 F51  0.0   0.0     141023 H21  0.2-  0.3+
140822 F51  0.0   0.0     140912 F51  0.2+  0.2+    141023 H21  0.1-  0.2+
140822 F51  0.0   0.0     140912 F51  0.1+  0.0     191222 J04  0.1-  0.1-
140822 F51  0.0   0.0     140916 F51  0.0   0.2-    191222 J04  0.0   0.1-
140823 F51  0.0   0.2-    140919 H21  0.1-  0.6+    191222 J04  0.1+  0.0
140823 F51  0.0   0.2-    140919 H21  0.2-  0.0     191223 J04  0.1+  0.1-
140823 F51  0.0   0.0     140919 H21  0.1-  0.3-    191223 J04  0.1-  0.2+
140828 F51  0.4-  0.0     140920 H21  0.2+  0.1+    191223 J04  0.0   0.1+
140828 F51  0.3-  0.0     140920 H21  0.2+  0.2+
140828 F51  0.3-  0.0     140920 H21  0.2+  0.0

Ephemeris:
2014 QX390               a,e,i = 1.78, 0.30, 28                  q = 1.2413
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2019 11 23    12 02 09.4 +46 25 33   0.8652  1.2471    84.3    52.0    22.0
...
2019 12 08    12 36 39.0 +41 39 01   0.8315  1.2654    87.9    51.1    21.9
...
2019 12 16    12 49 49.0 +39 16 48   0.8071  1.2800    90.7    50.2    21.8
...
2019 12 22    12 57 29.0 +37 36 12   0.7856  1.2930    93.2    49.4    21.8
2019 12 23    12 58 34.5 +37 19 58   0.7818  1.2953    93.7    49.3    21.8
2019 12 24    12 59 36.8 +37 03 53   0.7779  1.2977    94.2    49.1    21.8
...
2019 12 30    13 04 41.2 +35 30 26   0.7533  1.3128    97.3    48.0    21.7
...
2020 01 07    13 08 12.5 +33 32 55   0.7173  1.3351   102.3    46.0    21.6
...
2020 01 22    13 03 24.7 +30 04 21   0.6452  1.3828   114.5    40.3    21.2

A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-Y82