[Iaude] MPEC D47: 2018 DR [a=1.33,e=0.28,i=7.9,H=27.3]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Fri Feb 23 16:19:16 EST 2018


M.P.E.C. 2018-D47                                Issued 2018 Feb. 23, 21:15 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


                                    2018 DR
 
Observations:
     K18D00R* C2018 02 22.45964 12 19 24.41 +46 07 35.8          18.7 GUED047703
     K18D00R  C2018 02 22.46502 12 19 35.32 +46 05 31.0          18.6 GUED047703
     K18D00R  C2018 02 22.47579 12 19 57.71 +46 01 18.5                UED047703
     K18D00R  C2018 02 22.50273 12 20 54.22 +45 50 29.7          19.7 GUED047I52
     K18D00R  C2018 02 22.50291 12 20 54.70 +45 50 24.2          18.9 GUED047I52
     K18D00R  C2018 02 22.50310 12 20 55.02 +45 50 20.2                UED047I52
     K18D00R  C2018 02 22.50328 12 20 55.37 +45 50 16.8          18.5 GUED047I52
     K18D00R KC2018 02 22.81128012 35 24.80 +43 28 05.9                UED047J95
     K18D00R KC2018 02 22.81672812 35 39.99 +43 25 39.1                UED047J95
     K18D00R KC2018 02 22.82274912 35 56.77 +43 22 56.1          19.2 GUED047J95
     K18D00R  C2018 02 23.21461312 55 14.32 +39 46 38.1          18.3 GUED047H01
     K18D00R  C2018 02 23.21922512 55 28.12 +39 43 48.4          18.1 GUED047H01
     K18D00R  C2018 02 23.23603012 56 18.16 +39 33 22.4          18.9 GUED047H01
     K18D00R  C2018 02 23.24310312 56 39.09 +39 28 55.8          18.6 GUED047H01
     K18D00R  C2018 02 23.28244 12 58 38.29 +39 03 33.6          18.5 GUED047I52
     K18D00R  C2018 02 23.28256 12 58 38.68 +39 03 27.9          18.3 GUED047I52
     K18D00R  C2018 02 23.28269 12 58 38.99 +39 03 23.7          19.4 GUED047I52
     K18D00R  C2018 02 23.28282 12 58 39.39 +39 03 17.7          18.8 GUED047I52
 
Observer details:
703 Catalina Sky Survey.  Observers D. C. Fuls, B. M. Africano.  Measurers
    E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson,
    R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman,
    F. C. Shelly.  0.68-m Schmidt + 10K CCD.
H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
    Measurer W. H. Ryan.  2.4-m f/8.9 reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer D. C. Fuls.  Measurers
    E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson,
    R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman,
    F. C. Shelly.  1.0-m reflector + CCD.
J95 Great Shefford.  Observer P. Birtwhistle.  0.40-m f/6.0 Schmidt-Cassegrain
    + CCD.
 
Orbital elements:
2018 DR                                                  Earth MOID = 0.0005 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M 359.38000              (2000.0)            P               Q
n   0.64494019     Peri.  210.53774     -0.98945301     +0.13461634
a   1.3267520      Node   337.01541     -0.08886734     -0.85573231
e   0.2755590      Incl.    7.87337     -0.11439117     -0.49960049
P   1.53           H   27.3           G   0.15           U   7
Residuals in seconds of arc
180222 703  0.2+  0.8-    180222 I52  0.4-  1.2+    180223 H01  0.3+  0.2-
180222 703  1.0-  0.5-    180222 J95  0.2-  0.1-    180223 H01  0.1+  0.1-
180222 703  0.7+  0.2+    180222 J95  0.1-  0.0     180223 I52  0.1+  0.6+
180222 I52  0.1-  0.6+    180222 J95  0.2+  0.0     180223 I52  0.5+  0.3-
180222 I52  0.9+  0.5-    180223 H01  0.2-  0.2-    180223 I52  0.3-  0.6+
180222 I52  0.0   0.2+    180223 H01  0.1-  0.0     180223 I52  0.1-  0.3-

Ephemeris:
2018 DR                  a,e,i = 1.33, 0.28, 8                   q = 0.9612
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 01 24    09 38 54.1 +54 12 36   0.1336  1.0931   142.3    33.4    24.5
...
2018 02 08    09 59 08.9 +56 33 28   0.06946 1.0391   138.1    39.3    23.2
...
2018 02 16    10 29 31.7 +56 15 02   0.03708 1.0148   135.8    42.7    21.8
...
2018 02 22    12 02 52.6 +48 30 08   0.01377 0.9991   136.2    43.2    19.7
2018 02 23    12 43 25.6 +42 00 28   0.01028 0.9968   135.8    43.8    19.0
2018 02 24    13 40 36.5 +27 53 48   0.0073450.9944   131.2    48.5    18.4
...
2018 03 02    19 25 12.1 -56 49 42   0.02052 0.9820    63.4   115.5    23.3
...
2018 03 10    20 44 05.3 -58 23 56   0.05197 0.9697    61.9   115.3    25.3
...
2018 03 25    21 21 46.5 -56 46 24   0.1103  0.9612    68.0   105.9    26.4

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-D47



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