[Iaude] MPEC A55: 1994 BB [a=2.02,e=0.43,i=1.1,H=23.5]

mpec at si.edu mpec at si.edu
Sun Jan 8 09:57:49 EST 2017


M.P.E.C. 2017-A55                                Issued 2017 Jan. 8, 14:54 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 http://www.minorplanetcenter.net/    ISSN 1523-6714


                                    1994 BB
 
                           Revision to MPEC 1994-B04
 
Additional Observations:
     J94B00B  C2017 01 05.29987 07 46 07.50 +19 09 17.1          20.0 VqEA055G96
     J94B00B  C2017 01 05.30418 07 46 07.94 +19 09 17.0          20.1 VqEA055G96
     J94B00B  C2017 01 05.30855 07 46 08.39 +19 09 18.0          20.5 VqEA055G96
     J94B00B  C2017 01 05.35167 07 46 12.82 +19 09 23.0          21.1 VqEA055I52
     J94B00B  C2017 01 05.36203 07 46 13.88 +19 09 23.8          20.8 VqEA055I52
     J94B00B  C2017 01 05.36473 07 46 14.16 +19 09 24.2          20.6 VqEA055I52
     J94B00B 1C2017 01 05.44537 07 46 23.37 +19 09 21.5                 EA055658
     J94B00B 1C2017 01 05.44755 07 46 23.61 +19 09 21.8                 EA055658
     J94B00B 1C2017 01 05.44971 07 46 23.84 +19 09 22.0                 EA055658
     J94B00B  C2017 01 07.23166 07 49 57.09 +19 13 19.8          21.0 RoEA055926
     J94B00B  C2017 01 07.23544 07 49 57.49 +19 13 20.9          21.2 VqEA055G96
     J94B00B  C2017 01 07.24015 07 49 57.94 +19 13 21.3          20.7 VqEA055G96
     J94B00B  C2017 01 07.24297 07 49 58.25 +19 13 22.3          21.3 RoEA055926
     J94B00B  C2017 01 07.24466 07 49 58.47 +19 13 21.0          20.6 VqEA055G96
     J94B00B  C2017 01 07.25916 07 49 59.83 +19 13 25.0          20.8 RoEA055926
     J94B00B  C2017 01 07.29427 07 50 03.35 +19 13 29.0          21.4 VqEA055I52
     J94B00B  C2017 01 07.29702 07 50 03.64 +19 13 29.9          20.5 VqEA055I52
     J94B00B  C2017 01 07.29976 07 50 03.88 +19 13 30.9          20.8 VqEA055I52
     J94B00B  C2017 01 07.30251 07 50 04.20 +19 13 31.1          20.7 VqEA055I52
     J94B00B  C2017 01 07.39390 07 50 13.17 +19 13 42.0          20.7 VqEA055I52
     J94B00B  C2017 01 07.39633 07 50 13.38 +19 13 42.3          20.6 VqEA055I52
     J94B00B  C2017 01 07.39875 07 50 13.64 +19 13 42.6          20.6 VqEA055I52
     J94B00B  C2017 01 07.40118 07 50 13.87 +19 13 42.9          20.8 VqEA055I52
     J94B00B  C2017 01 08.21325 07 51 50.41 +19 15 25.8          20.7 VqEA055G96
     J94B00B  C2017 01 08.21886 07 51 50.96 +19 15 27.7          20.5 VqEA055G96
     J94B00B  C2017 01 08.22506 07 51 51.59 +19 15 28.4          20.3 VqEA055G96
     J94B00B  C2017 01 08.23031 07 51 52.18 +19 15 28.9                qEA055G96
     J94B00B  C2017 01 08.27325 07 51 56.35 +19 15 36.9          20.2 VqEA055I52
     J94B00B  C2017 01 08.27633 07 51 56.62 +19 15 37.4          20.2 VqEA055I52
     J94B00B  C2017 01 08.27974 07 51 56.98 +19 15 37.8          20.6 VqEA055I52
 
Observer details:
658 National Research Council of Canada.  Observer D. D. Balam.  1.82-m
    Plaskett telescope + CCD.
926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  Measurer
    M. Schwartz.  0.81-m f/7 Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey.  Observers A. D. Grauer, R. A. Kowalski.  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.  1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observers G. J. Leonard,
    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.
 
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or integer in degrees), reference and Delta-T
170105 G96   62-   20+    170108 I52   62-   20+    MPO 47690    +27 day
 
Orbital elements:
1994 BB                                                  Earth MOID = 0.1776 AU
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5                 MPC
M  17.15953              (2000.0)            P               Q
n   0.34282503     Peri.  335.99900     -0.15007217     -0.98853268
a   2.0218753      Node   122.62817     +0.91028435     -0.14477554
e   0.4260840      Incl.    1.14148     +0.38582477     -0.04293228
P   2.87           H   23.5           G   0.15           U   4
Residuals in seconds of arc
940118 691  0.1-  0.1-    170105 G96  0.6-  0.0     170107 I52  0.1+  0.2-
940118 691  0.2-  0.7-    170105 G96  0.6-  0.4+    170107 I52  0.3-  0.4+
940118 691  0.1+  0.8-    170105 I52  0.3-  0.2-    170107 I52  0.4+  0.2+
940119 691  0.1-  0.2+    170105 I52  0.3-  0.6-    170107 I52  0.1+  0.2-
940119 691  0.2-  0.1-    170105 I52  0.2-  0.5-    170107 I52  0.3-  0.2-
940119 691  0.7-  0.3-    170105 658  0.4+  0.1+    170107 I52  0.0   0.1-
940119 691  0.1-  0.6-    170105 658  0.5+  0.2+    170107 I52  0.2-  0.0
940119 691  0.1-  0.5-    170105 658  0.5+  0.2+    170108 G96  0.3+  0.6-
940119 691  0.1-  0.6-    170107 926  0.2-  0.2-    170108 G96  0.0   0.2+
940121 691  0.7-  0.1-    170107 G96  0.3+  1.0+    170108 G96  0.1+  0.2-
940121 691  0.1+  0.4+    170107 G96  0.1-  0.5+    170108 G96  1.0+  0.7-
940202 691  0.3-  0.1-    170107 926  0.0   0.3+    170108 I52  0.1+  0.1-
940202 691  1.0-  1.1-    170107 G96  0.9+  0.6-    170108 I52  0.4-  0.1-
940202 691  1.1+  0.3-    170107 926  0.8-  0.2+    170108 I52  0.0   0.3-
170105 G96  0.5-  0.7+    170107 I52  0.1-  0.7-

Ephemeris:
1994 BB                  a,e,i = 2.02, 0.43, 1                   q = 1.1604
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2016 12 09    06 41 06.8 +18 45 18   0.2057  1.1769   157.0    19.1    21.4
...
2016 12 24    07 18 56.7 +18 49 46   0.1840  1.1611   163.4    14.0    20.9
...
2017 01 01    07 37 10.3 +19 01 08   0.1815  1.1611   167.4    10.7    20.8
...
2017 01 07    07 49 28.2 +19 13 03   0.1838  1.1651   170.7     7.8    20.7
2017 01 08    07 51 23.9 +19 15 13   0.1845  1.1661   171.3     7.3    20.7
2017 01 09    07 53 17.5 +19 17 25   0.1853  1.1671   171.9     6.8    20.7
...
2017 01 15    08 03 53.2 +19 30 52   0.1923  1.1755   175.7     3.6    20.6
...
2017 01 23    08 16 01.9 +19 47 20   0.2072  1.1914   178.8     1.0    20.6
...
2017 02 07    08 34 39.6 +20 00 16   0.2533  1.2349   167.7     9.8    21.6

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-A55




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