[Iaude] MPEC C01: 2017 RL [a=2.44,e=0.58,i=19.5,H=18.6,PHA]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Thu Jan 31 23:13:17 EST 2019


M.P.E.C. 2019-C01                                Issued 2019 Feb. 1, 04:09 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


                                    2017 RL
 
                           Revision to MPEC 2017-R33
 
Additional Observations:
     K17R00L KC2019 01 11.57698210 13 57.817+23 45 22.23         24.53GVEC001T12
     K17R00L KC2019 01 12.56786610 13 13.785+23 49 21.11         24.40GVEC001T12
 
Observer details:
T12 Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m).  Observer D. J. Tholen.
    2.24-m f/10.1 reflector + CCD.
 
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
190111 T12  2.1+  1.3-    190112 T12  2.0+  1.4-    MPO441100   -0.00007 day
 
Orbital elements:
2017 RL                                             PHA, Earth MOID = 0.0236 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M 159.20754              (2000.0)            P               Q
n   0.25888598     Peri.  347.65144     +0.88988470     +0.44768344
a   2.4381684      Node   344.80465     -0.38491465     +0.63372571
e   0.5801490      Incl.   19.53905     -0.24483859     +0.63084964
P   3.81           H   18.6           G   0.15           U   1
Residuals in seconds of arc
170901 F51  0.0   0.1+    170907 695  0.1-  0.2+    170929 H21  0.0   0.0
170901 F51  0.0   0.0     170908 I89  0.1+  0.6+    170930 T08  0.2+  0.2-
170901 F51  0.0   0.1-    170908 I89  0.0   0.3+    170930 T08  0.4-  0.3+
170902 595  0.0   0.3-    170908 I89  0.2-  0.6+    170930 T08  0.7-  0.3+
170902 595  0.3-  0.6-    170908 U69  0.0   0.1+    170930 T08  0.4+  0.4-
170902 J95  0.1+  0.4-    170908 U69  0.2+  0.1+    171007 926  0.2+  0.0
170902 J95  0.3+  0.0     170908 U69  0.1-  0.0     171007 926  0.1-  0.1+
170902 J95  0.1+  0.4-    170908 T05  0.3+  0.4-    171007 926  0.1-  0.0
170902 H01  0.1+  0.2-    170908 T05  0.5+  0.2-    171009 703  0.4-  0.1-
170902 H01  0.0   0.3-    170908 T05  0.1+  0.1-    171009 703  0.2+  0.9-
170902 H01  0.1+  0.2-    170908 T05  0.3+  0.1+    171009 703  0.0   0.2-
170902 H01  0.2+  0.2-    170908 J95  0.1+  0.0     171009 703  0.1+  0.1-
170902 900  0.3+  0.4+    170908 J95  0.4-  0.1+    171014 H45  0.1-  0.2-
170902 900  0.4-  0.1+    170908 J95  0.1-  0.3-    171014 H45  0.1+  0.2-
170903 C95  0.3+  0.1-    170908 Z80  1.0-  0.8-    171014 H45  0.3-  0.3-
170903 C95  0.1-  0.1+    170908 Z80  0.9-  0.3-    171014 H45  0.1-  0.1-
170903 C95  0.1+  0.2-    170909 Z80  0.8+  0.4-    171014 H45  0.1-  0.1+
170903 C95  0.2+  0.2+    170910 695  0.0   0.1+    171014 H45  0.0   0.2+
170903 C95  0.1-  2.6+    170910 695  0.2-  0.1+    171014 T05  0.3+  0.1-
170903 C95  0.3+  2.9+    170912 G48  0.8+  0.3-    171014 T05  0.1+  0.3+
170903 C95  0.2+  1.9+    170912 G48  0.1-  0.9-    171014 T05  0.0   0.1+
170903 C95  0.4-  2.0+    170912 G48  0.2+  1.2+    171015 B67  0.2-  0.2-
170903 C95  0.6-  2.5+    170912 G48  0.5+  1.1+    171015 B67  0.3-  0.0
170904 G40  0.1+  0.2-    170912 G48  0.8+  0.5-    171015 B67  0.2-  0.1+
170904 G40  0.1+  0.2-    170914 T08  0.0   0.3-    171015 K38  0.1+  0.1-
170904 G40  0.2+  0.1-    170914 T08  0.1-  0.1-    171015 K38  0.1-  0.1-
170904 W34  0.0   0.2+    170914 T08  0.0   0.1-    171016 T08  1.0+  0.1+
170904 W34  0.4-  0.1+    170914 T08  0.1-  0.2-    171016 T08  0.1+  0.0
170904 W34  0.4-  0.2+    170915 L04  0.0   0.1-    171016 T08  0.2-  0.6+
170904 W34  0.1-  0.1-    170915 L04  0.3-  0.0     171016 T08  0.3-  0.3-
170904 H06  0.4+  0.4-    170915 L04  0.3-  0.1-    171020 T08  0.3+  0.0
170904 H06  0.6+  0.4-    170917 H15  0.3-  0.2-    171020 T08  0.2+  0.2+
170904 K88  0.1+  0.3-    170917 H15  0.0   0.0     171020 T08  0.0   0.5-
170904 K88  0.2-  0.0     170917 H15  0.3-  0.5-    171020 T08  0.1-  0.2+
170904 K88  0.3+  0.5+    170918 T08  0.0   0.0     171103 F51  0.0   0.1-
170904 K88  0.3-  0.2-    170918 T08  0.2-  0.1-    171103 F51  0.0   0.1-
170904 K88  0.1-  0.3+    170918 T08  0.2-  0.2-    171103 F51  0.1+  0.1-
170904 K88  0.1-  0.1+    170918 T08  0.0   0.0     171103 F51  0.0   0.2-
170904 K88  0.0   0.0     170919 K14  0.1+  0.1-    171128 I52  0.2-  0.7-
170904 K88  0.3-  0.3-    170919 K14  0.0   0.0     171128 I52  0.1-  0.0
170904 B49  0.1-  0.1-    170919 Z80  0.2+  0.5+    171207 291  0.1-  0.4+
170904 B49  0.1-  0.1-    170919 Z80  0.3+  0.6+    171207 291  0.2-  0.2+
170904 B49  0.0   0.2-    170919 Z80  0.1-  0.1-    171207 291  0.1+  0.1-
170905 718  1.1+  0.4-    170919 Z80  0.1+  0.0     171220 291  0.3+  0.4+
170905 718  0.9+  0.7+    170919 K14  0.5-  0.4+    171220 291  0.6+  0.1+
170905 718  0.0   0.5-    170919 Z80  0.4-  0.1-    171220 291  0.2+  0.5+
170905 718  0.1+  0.4-    170921 K78  0.4-  0.1-    180105 291  0.2+  0.1+
170905 718  0.6+  0.3-    170921 K78  1.0-  1.1+    180105 291  0.0   0.3+
170906 Z80  0.3-  0.3-    170926 T08  0.2-  0.2-    180119 291  0.3+  0.5+
170906 Z80  0.0   0.8-    170926 T08  0.2-  0.1+    180119 291  0.8+  0.1+
170906 Z80  0.2+  0.8-    170926 T08  0.2-  0.1-    180119 291  0.9+  0.0
170906 Z80  0.9-  0.9-    170926 T08  0.1+  0.2+    180204 695  0.2-  0.1+
170906 H21  0.2-  0.7-    170926 T08  0.3-  0.3-    180204 695  0.2-  0.2+
170906 H21  0.1-  0.4-    170926 K26  0.2+  0.8+    180204 695  0.1-  0.1+
170906 H21  0.1-  0.4-    170926 K26  0.3-  0.6+    180205 695  0.2-  0.1+
170906 H21  0.2-  0.3-    170926 K26  0.2+  0.2-    180205 695  0.1-  0.1+
170906 H21  0.1-  0.3-    170926 K26  0.1+  0.1+    180306 695  0.2+  0.3+
170907 H06  0.0   0.1-    170926 K26  0.1-  0.6-    180306 695  0.0   0.6+
170907 H06  0.3-  0.1+    170926 K26  0.5-  0.3+    190111 T12  0.1+  0.1+
170907 H06  0.3-  0.2+    170926 K26  0.4-  0.2+    190112 T12  0.1-  0.0
170907 695  0.0   0.3+    170929 H21  0.0   0.0
170907 695  0.1-  0.3+    170929 H21  0.0   0.1-

Ephemeris:
2017 RL                  a,e,i = 2.44, 0.58, 20                  q = 1.0237
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2019 01 02    10 19 58.3 +23 08 55   2.9021  3.6293   131.5    11.7    24.4
...
2019 01 17    10 09 42.7 +24 07 23   2.7883  3.6626   148.4     8.1    24.2
...
2019 01 25    10 02 28.7 +24 39 46   2.7518  3.6793   157.2     5.9    24.1
...
2019 01 31    09 56 27.3 +25 02 41   2.7370  3.6912   163.3     4.4    24.0
2019 02 01    09 55 24.8 +25 06 18   2.7356  3.6932   164.1     4.2    24.0
2019 02 02    09 54 21.7 +25 09 50   2.7345  3.6951   165.0     4.0    24.0
...
2019 02 08    09 47 55.1 +25 29 25   2.7351  3.7065   168.4     3.1    23.9
...
2019 02 16    09 39 12.6 +25 49 53   2.7543  3.7210   166.2     3.6    24.0
...
2019 03 03    09 23 55.6 +26 07 13   2.8450  3.7461   151.5     7.2    24.3

                       (Last issue was M.P.E.C. 2019-B160)

A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-C01



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