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    • MPEC 2018-B44 : 2018 BS

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    M.P.E.C. 2018-B44                                Issued 2018 Jan. 18, 17:53 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@CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                    2018 BS

Observations:
     K18B00S* C2018 01 16.34592 08 09 26.339+19 47 45.57         21.4 wUEB044F51
     K18B00S  C2018 01 16.35757 08 09 27.837+19 47 42.41         21.4 wUEB044F51
     K18B00S  C2018 01 16.36919 08 09 29.324+19 47 39.18         21.5 wUEB044F51
     K18B00S  C2018 01 16.38087 08 09 30.805+19 47 35.86         21.4 wUEB044F51
     K18B00S  C2018 01 17.04685 08 11 05.23 +19 43 30.0          21.3 VSEB044033
     K18B00S  C2018 01 17.05437 08 11 06.25 +19 43 26.9          21.1 VSEB044033
     K18B00S KC2018 01 17.21793 08 11 32.02 +19 42 42.4          19.8 RqEB044734
     K18B00S KC2018 01 17.22312 08 11 33.58 +19 42 45.2                oEB044691
     K18B00S KC2018 01 17.22584 08 11 33.14 +19 42 39.9          20.6 RqEB044734
     K18B00S KC2018 01 17.23168 08 11 34.67 +19 42 42.4                oEB044691
     K18B00S KC2018 01 17.23373 08 11 34.12 +19 42 37.8          20.9 RqEB044734
     K18B00S  C2018 01 17.27421 08 11 39.99 +19 42 29.1          21.2 GUEB044I52
     K18B00S  C2018 01 17.27675 08 11 40.32 +19 42 27.8                UEB044I52
     K18B00S  C2018 01 17.27841 08 11 40.56 +19 42 27.5                UEB044I52
     K18B00S  C2018 01 17.28007 08 11 40.75 +19 42 27.2                UEB044I52
     K18B00S  C2018 01 18.21832 08 13 56.45 +19 37 10.9          20.7 GUEB044I52
     K18B00S  C2018 01 18.21997 08 13 56.68 +19 37 11.7          21.0 GUEB044I52
     K18B00S  C2018 01 18.22163 08 13 56.83 +19 37 10.6          21.2 GUEB044I52
     K18B00S  C2018 01 18.22328 08 13 57.07 +19 37 10.3          21.1 GUEB044I52
     K18B00S KC2018 01 18.40653 08 14 19.82 +19 36 10.7                oEB044691
     K18B00S KC2018 01 18.41300 08 14 20.69 +19 36 08.5                oEB044691
     K18B00S KC2018 01 18.41947 08 14 21.44 +19 36 06.1                oEB044691

Observer details:
033 Karl Schwarzschild Observatory, Tautenburg.  Observers F. Ludwig,
    B. Stecklum.  Measurer B. Stecklum.  1.34-m f/3 Schmidt + CCD.
691 Steward Observatory, Kitt Peak.  Observers M. T. Read, T. H. Bressi.
    0.9-m f/3 reflector + CCD.
734 Farpoint Observatory.  Observer G. Hug.  0.69-m reflector + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz,
    M. Willman.  Measurers K. Chambers, S. Chastel, L. Denneau, H. Flewelling,
    M. Huber, E. Lilly, E. Magnier, R. Wainscoat, C. Waters, R. Weryk.  1.8-m
    Ritchey-Chretien + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer R. G. Matheny.
    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.

Orbital elements:
2018 BS                                                  Earth MOID = 0.1673 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
M 317.23950              (2000.0)            P               Q
n   0.33504218     Peri.  343.88037     -0.34353458     -0.93913168
a   2.0530667      Node   126.21183     +0.86218533     -0.31705382
e   0.4401811      Incl.    0.28124     +0.37231767     -0.13231992
P   2.94           H   24.5           G   0.15           U   7
Residuals in seconds of arc
180116 F51  0.0   0.1+    180117 734  0.9+  0.0     180118 I52  0.3+  0.2+
180116 F51  0.0   0.0     180117 691  0.0   0.1+    180118 I52  0.6-  0.4-
180116 F51  0.0   0.0     180117 734  0.5+  0.3+    180118 I52  0.1-  0.3-
180116 F51  0.0   0.0     180117 I52  0.4-  0.5-    180118 691  0.2-  0.1+
180117 033  0.6-  0.4+    180117 I52  0.3-  1.0-    180118 691  0.6+  0.4+
180117 033  0.1-  0.0     180117 I52  0.2+  0.8-    180118 691  0.2-  0.5+
180117 734  0.7-  0.1+    180117 I52  0.1-  0.6-
180117 691  0.2+  0.5+    180118 I52  0.0   1.0-

Ephemeris:
2018 BS                  a,e,i = 2.05, 0.44, 0                   q = 1.1493
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2017 12 19    06 55 08.7 +21 49 48   0.1942  1.1720   164.2    13.2    22.1
...
2018 01 03    07 34 47.9 +20 55 45   0.1703  1.1515   170.2     8.3    21.5
...
2018 01 11    07 55 58.9 +20 16 37   0.1669  1.1494   173.4     5.7    21.4
...
2018 01 17    08 10 59.2 +19 44 13   0.1685  1.1520   175.9     3.5    21.3
2018 01 18    08 13 23.2 +19 38 40   0.1692  1.1527   176.4     3.1    21.3
2018 01 19    08 15 45.3 +19 33 05   0.1699  1.1536   176.9     2.7    21.2
...
2018 01 25    08 29 16.0 +18 59 07   0.1764  1.1608   179.7     0.2    21.1
...
2018 02 02    08 45 20.9 +18 13 39   0.1906  1.1757   176.0     3.3    21.6
...
2018 02 17    09 09 56.8 +16 50 16   0.2350  1.2181   166.8    10.6    22.5

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-B44

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