[Iaude] MPEC Y60: 2018 YB1 [a=2.94,e=0.60,i=6.6,H=20.0]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Sat Dec 22 17:45:17 EST 2018


M.P.E.C. 2018-Y60                                Issued 2018 Dec. 22, 22:41 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 YB1
 
Observations:
     K18Y01B* C2018 12 19.45667 10 20 18.29 -06 26 39.5          21.2 GVEY060G96
     K18Y01B  C2018 12 19.46185 10 20 19.39 -06 26 48.7          20.3 GVEY060G96
     K18Y01B  C2018 12 19.46702 10 20 20.59 -06 26 59.3          21.3 GVEY060G96
     K18Y01B  C2018 12 19.47219 10 20 21.74 -06 27 08.8          20.0 GVEY060G96
     K18Y01B  C2018 12 19.51205 10 20 30.54 -06 28 23.6          20.8 GVEY060I52
     K18Y01B  C2018 12 19.51418 10 20 31.00 -06 28 28.3          20.7 GVEY060I52
     K18Y01B  C2018 12 19.51631 10 20 31.46 -06 28 32.1          21.0 GVEY060I52
     K18Y01B  C2018 12 20.41923 10 23 57.60 -06 56 59.6                VEY060I52
     K18Y01B  C2018 12 20.42185 10 23 58.26 -06 57 04.0                VEY060I52
     K18Y01B  C2018 12 20.42449 10 23 58.84 -06 57 08.4                VEY060I52
     K18Y01B  C2018 12 20.42717 10 23 59.55 -06 57 15.1          19.6 GVEY060I52
     K18Y01B KC2018 12 21.33941 10 27 28.29 -07 25 55.1          19.8 RoEY060691
     K18Y01B KC2018 12 21.35596 10 27 31.93 -07 26 26.7          20.3 RoEY060691
     K18Y01B KC2018 12 21.37252 10 27 35.68 -07 26 58.1          20.2 RoEY060691
     K18Y01B ^C2018 12 22.54240 10 32 03.00 -08 03 43.3          20.5 RoEY060695
     K18Y01B ^C2018 12 22.54498 10 32 03.57 -08 03 47.9          20.6 RoEY060695
     K18Y01B ^C2018 12 22.54756 10 32 04.15 -08 03 53.0          20.7 RoEY060695
 
Observer details:
691 Steward Observatory, Kitt Peak-Spacewatch.  Observer T. H. Bressi.  0.9-m
    f/3 reflector + CCD.
695 Kitt Peak.  Observer R. A. Mastaler.  2.3-m f/9 reflector + CCD.
G96 Mt. Lemmon Survey.  Observer R. A. Kowalski.  Measurers B. M. Africano,
    E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
    H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. L. Seaman,
    F. C. Shelly.  1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer B. M. Africano.
    Measurers B. M. Africano, E. J. Christensen, G. A. Farneth, D. C. Fuls,
    A. R. Gibbs, A. D. Grauer, H. Groeller, R. A. Kowalski, S. M. Larson,
    G. J. Leonard, R. L. Seaman, F. C. Shelly.  1.0-m reflector + CCD.
 
Orbital elements:
2018 YB1                                                 Earth MOID = 0.2289 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M  19.00696              (2000.0)            P               Q
n   0.19545331     Peri.  288.63961     -0.75620654     -0.65166559
a   2.9406321      Node   210.77551     +0.63538124     -0.70975866
e   0.5974876      Incl.    6.62387     +0.15634048     -0.26753433
P   5.04           H   20.0           G   0.15           U   5
Residuals in seconds of arc
181219 G96  0.2+  0.1-    181219 I52  0.3-  0.1+    181221 691  0.6-  0.1+
181219 G96  0.5-  0.5+    181220 I52  0.6-  1.0-    181221 691  0.2-  0.1+
181219 G96  0.3+  0.3-    181220 I52  0.5+  0.4-    181222 695  0.1+  0.2-
181219 G96  0.4+  0.1-    181220 I52  0.4+  0.2+    181222 695  0.0   0.1+
181219 I52  0.0   0.5+    181220 I52 (2.1+  1.4-)   181222 695  0.0   0.2-
181219 I52  0.1-  0.2-    181221 691  0.7+  0.3+

Ephemeris:
2018 YB1                 a,e,i = 2.94, 0.60, 7                   q = 1.1836
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 11 22    08 43 01.3 +06 49 50   0.7034  1.3759   107.7    43.1    21.6
...
2018 12 07    09 34 24.1 -00 00 52   0.5898  1.2959   108.1    46.3    21.2
...
2018 12 15    10 03 34.3 -04 06 18   0.5439  1.2603   107.6    48.1    21.0
...
2018 12 21    10 26 09.6 -07 15 03   0.5161  1.2375   107.0    49.5    20.9
2018 12 22    10 29 58.6 -07 46 29   0.5120  1.2341   106.9    49.7    20.9
2018 12 23    10 33 48.3 -08 17 51   0.5080  1.2307   106.8    49.9    20.8
...
2018 12 29    10 56 59.2 -11 22 54   0.4871  1.2129   106.2    51.1    20.8
...
2019 01 06    11 28 05.8 -15 13 32   0.4665  1.1955   105.5    52.4    20.7
...
2019 01 21    12 24 34.9 -20 57 11   0.4453  1.1837   105.5    53.2    20.6

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-Y60



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