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IAU Minor Planet Center

Minor Planet Center

MPEC 2007-B40 : 2007 BT7

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M.P.E.C. 2007-B40                                Issued 2007 Jan. 25, 00:36 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets and routine data on comets.  They are published
   on behalf of Commission 20 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 http://cfa-www.harvard.edu/iau/mpc.html  ISSN 1523-6714

                                   2007 BT7

Observations:
     K07B07T  C2007 01 23.14808 04 30 34.89 +26 55 04.8          19.6   EB040704
     K07B07T  C2007 01 23.16028 04 30 39.13 +26 54 26.9          19.9   EB040704
     K07B07T  C2007 01 23.17251 04 30 43.39 +26 53 47.2          19.9   EB040704
     K07B07T  C2007 01 23.18475 04 30 47.50 +26 53 10.3          19.9   EB040704
     K07B07T* C2007 01 24.18963 04 36 36.39 +26 01 18.2          19.2 V EB040703
     K07B07T  C2007 01 24.19553 04 36 38.44 +26 00 59.0          19.0 V EB040703
     K07B07T  C2007 01 24.20145 04 36 40.39 +26 00 43.1          19.3 V EB040703
     K07B07T  C2007 01 24.20737 04 36 42.26 +26 00 24.2          19.6 V EB040703
     K07B07T  C2007 01 24.25639 04 36 58.42 +25 57 54.4          19.2 V EB040703
     K07B07T  C2007 01 24.26358 04 37 00.73 +25 57 32.1          18.9 V EB040703
     K07B07T  C2007 01 24.27076 04 37 03.14 +25 57 10.3          19.1 V EB040703
     K07B07T  C2007 01 24.27793 04 37 05.48 +25 56 47.6          19.2 V EB040703

Observer details:
703 Catalina Sky Survey.  Observer S. M. Larson.  Measurers E. C. Beshore,
    E. J. Christensen, G. J. Garradd, A. R. Gibbs, A. D. Grauer, R. E. Hill,
    R. A. Kowalski, S. M. Larson, R. H. McNaught.  0.68-m Schmidt + CCD.
704 Lincoln Laboratory ETS, New Mexico.  Observers M. Bezpalko, D. Torres,
    R. Kracke, G. Spitz, J. Kistler.  Measurers J. Stuart, S. Scruggs.  1.0-m
    f/2.15 reflector + CCD.

Orbital elements:
2007 BT7                                                 Earth MOID = 0.1590 AU
Epoch 2007 Apr. 10.0 TT = JDT 2454200.5                 MPC
M  39.17758              (2000.0)            P               Q
n   0.29181011     Peri.  111.88268     +0.64799348     -0.70534709
a   2.2511399      Node   294.39433     +0.52861196     +0.68813691
e   0.5718781      Incl.   18.39438     +0.54833734     +0.17015605
P   3.38           H   19.5           G   0.15           U   9
Residuals in seconds of arc
070123 704  0.0   0.4-    070124 703  0.9-  0.2-    070124 703  0.3+  0.4+
070123 704  0.3+  0.2+    070124 703  0.6+  1.4-    070124 703  0.4-  0.2+
070123 704  0.7+  0.8-    070124 703  0.7+  0.8+    070124 703  0.2+  0.4+
070123 704  1.0-  1.0+    070124 703  0.3-  0.0     070124 703  0.1-  0.3-

Ephemeris:
2007 BT7                 a,e,i = 2.25, 0.57, 18                  q = 0.9638
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2007 01 20    04 10.26   +29 49.3    0.302    1.188   126.2    41.9    18.9
2007 01 30    05 05.30   +21 38.1    0.388    1.260   127.7    38.2    19.5
2007 02 09    05 41.47   +16 14.6    0.496    1.336   125.5    37.0    20.1
2007 02 19    06 08.59   +12 48.4    0.619    1.415   121.7    36.5    20.7
2007 03 01    06 31.23   +10 33.7    0.755    1.495   117.2    36.1    21.2
2007 03 11    06 51.47   +09 00.8    0.900    1.575   112.4    35.7    21.7

Timothy B. Spahr             (C) Copyright 2007 MPC           M.P.E.C. 2007-B40

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