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IAU Minor Planet Center

Minor Planet Center

MPEC 2007-A15 : 2001 PE1

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M.P.E.C. 2007-A15                                Issued 2007 Jan. 5, 12:38 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

                                   2001 PE1

                           Revision to MPEC 2001-P25

Additional Observations:
     K01P01E 2C2006 11 28.52657610 06 09.461+07 59 57.81         22.1 R EA015568
     K01P01E 2C2006 11 28.53141310 06 09.583+07 59 56.81         22.3 R EA015568
     K01P01E 2C2006 12 25.58357510 07 22.990+07 31 59.40         22.3 R EA015568
     K01P01E 2C2006 12 25.58750510 07 22.894+07 31 59.77         22.4 R EA015568

Observer details:
568 Mauna Kea.  Observer F. Bernardi.  Measurers F. Bernardi, D. J. Tholen.
    2.24-m University of Hawaii reflector + 2048 CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
061128 568 0.03- 0.01+    061225 568 0.04- 0.01+    MPO 57834   +0.17 day

Orbital elements:
2001 PE1                                                 Earth MOID = 0.1056 AU
Epoch 2007 Apr. 10.0 TT = JDT 2454200.5                 MPC
M  67.59373              (2000.0)            P               Q
n   0.21457917     Peri.  190.71932     +0.97067182     -0.24038482
a   2.7631916      Node   183.19585     +0.22480242     +0.91254118
e   0.6001388      Incl.    3.46643     +0.08520619     +0.33088327
P   4.59           H   18.2           G   0.15           U   1
Residuals in seconds of arc
010721 608  0.3-  0.5-    010821 621  0.3-  0.1+    011107 704  0.1-  0.5+
010721 608  0.7-  0.7-    010822 342  0.3-  0.4-    011107 704  0.4-  0.5+
010721 608  0.0   0.3-    010822 342  0.0   1.0-    011107 704  0.3-  0.1+
010806 608  0.1-  0.5-    010822 342  0.6-  0.5+    011107 704  0.2-  0.4+
010806 608  0.2+  0.5-    010822 413  0.1-  0.3+    011114 670  0.5+  0.2+
010806 608  0.4-  0.2-    010822 413  0.1-  0.3+    011114 670  0.3+  1.5-
010807 649  0.7-  0.1+    010822 621  0.0   0.9+    011115 118  0.3+  0.3+
010807 649  0.2-  0.5+    010824 670  0.2+  0.2+    011115 118  0.4+  0.2-
010807 422  0.3-  0.4+    010824 670  0.1-  0.4+    011115 587 (2.2+  0.8+)
010807 422  0.1+  1.8-    010825 704  1.0-  0.6-    011115 587  0.9+  1.8+
010807 422  0.1-  0.3-    010825 704  0.3-  0.1-    011117 608  1.0-  0.7-
010807 422  0.1+  0.1-    010825 704  0.7-  0.3-    011117 608  0.9-  0.4-
010807 422  0.0   0.2+    010825 704  0.3-  0.4-    011117 608  0.9-  0.4-
010807 608  0.0   0.8-    010825 704  0.1-  0.1-    011118 608  0.8+  0.9+
010807 608  0.0   0.0     010825 621  0.3-  0.3+    011118 608  0.9+  0.8+
010807 608  0.2+  0.3-    010825 621  0.7-  0.5-    011118 608  0.7+  1.1+
010807 413  0.0   0.0     010825 621  0.4-  0.5-    011119 704  0.3-  0.2+
010807 413  0.2-  0.1-    010829 711 (4.8-  1.0-)   011119 704  0.5-  0.3+
010807 413  0.1-  0.1+    010829 711 (2.6-  2.8+)   011119 704  0.1+  0.7+
010807 946  0.6+  0.3+    010829 711 (1.0-  6.3+)   011119 704  0.2-  0.0
010807 946  1.0+  0.5+    010911 704 (0.4+  2.4+)   011119 704  0.4-  0.6+
010807 946  0.4+  1.4+    010911 704 (1.0+  2.2+)   011119 704  0.5-  0.9+
010808 808  0.7+  1.5+    010911 704 (0.2-  2.3+)   011119 704  0.2+  0.3+
010808 808 (0.4-  2.4+)   010918 046  0.3-  0.6+    011119 704  1.4-  0.6+
010808 808  0.7+  1.4+    010918 046  0.1+  0.3+    011120 704  0.5-  0.6-
010808 808  0.4-  1.2+    011013 704  0.6-  0.4-    011120 704  0.2+  0.6-
010808 808 (0.3+  2.4+)   011013 704  0.3+  0.6-    011120 704  0.4+  0.3-
010808 808 (2.1-  2.7+)   011013 704  1.5+  0.2+    011120 704  0.2-  0.3+
010808 918 (1.4+  2.5+)   011013 704  0.0   0.9-    011120 704  0.0   0.0
010808 918 (1.4+  2.3+)   011013 704  1.2-  1.2-    011207 704  0.0   0.1-
010808 918  0.8+  0.3-    011015 704  0.1+  0.1-    011207 704  0.4-  0.2+
010808 413  0.0   0.2-    011015 704  0.3-  0.2-    011207 704  0.1-  0.4+
010808 413  0.0   0.1-    011015 704  0.5+  0.3-    011207 704  0.1+  0.6+
010808 413  0.0   0.3-    011015 704  0.5+  0.6-    011207 704  0.2-  0.7+
010809 644  0.8+  0.8+    011015 704  0.4-  1.0-    011218 704  0.9+  1.2-
010809 644  0.9+  0.7+    011015 071  0.2-  0.2-    011218 704  0.6+  0.8+
010809 649  0.3-  0.8+    011015 071 (2.9+  0.3+)   011218 704  0.7-  0.2-
010809 649  0.1-  1.3+    011015 071 (3.8+  1.6+)   011218 704  0.3-  0.2-
010809 644  0.8+  0.7+    011018 071 (6.3+  0.3-)   011219 704  0.1+  0.1-
010809 413  0.0   0.2-    011018 071 (2.2-  1.4-)   011219 704  0.5-  0.7+
010809 413  0.1+  0.5-    011018 071 (4.8+  1.1-)   011219 704  0.6-  0.1-
010809 413  0.1-  0.1-    011019 808 (3.0-  0.4+)   011219 704  0.5-  0.1-
010819 704  0.2+  0.5+    011019 808  1.0-  0.9+    011219 704  0.6-  0.1-
010819 704  1.1+  0.4+    011022 198  0.6+  1.4-    020105 608  0.8+  0.5+
010819 704  0.2-  1.2+    011022 198  0.3+  0.2-    020105 608  0.5+  0.1+
010819 704  0.3+  0.2+    011030 608  0.1-  0.7-    020105 608  0.6-  0.0
010821 621  0.2-  0.2+    011030 608  0.5+  0.8-    020206 644  1.3+  0.0
010821 621  0.2-  0.3+    011030 608  0.4+  0.7-    061128 568  0.0   0.1+
010821 621  0.1-  0.2+    011102 413  0.2+  0.3-    061128 568  0.1-  0.0
010821 621  0.0   0.3+    011102 413  0.3+  0.1-    061225 568  0.1+  0.0
010821 621  0.1-  0.4+    011102 413  0.4+  0.5-    061225 568  0.1+  0.0
010821 621  0.0   0.4+    011107 704  0.3+  0.0

Ephemeris:
2001 PE1                 a,e,i = 2.76, 0.60, 3                   q = 1.1049
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2006 12 31    10 04.89   +07 42.7    1.741    2.475   128.4    18.1    22.3
2007 01 10    09 58.03   +08 16.3    1.707    2.543   140.4    14.3    22.2
2007 01 20    09 48.66   +09 06.0    1.694    2.609   152.9     9.9    22.1
2007 01 30    09 37.66   +10 06.6    1.708    2.674   165.7     5.2    21.9
2007 02 09    09 26.17   +11 11.6    1.752    2.737   176.3     1.4    21.8
2007 02 19    09 15.38   +12 14.5    1.827    2.799   167.2     4.5    22.1
2007 03 01    09 06.30   +13 09.9    1.931    2.860   155.0     8.4    22.5
2007 03 11    08 59.58   +13 54.6    2.062    2.919   143.3    11.7    22.8
2007 03 21    08 55.48   +14 27.6    2.214    2.977   132.3    14.3    23.1

Timothy B. Spahr             (C) Copyright 2007 MPC           M.P.E.C. 2007-A15

Read MPEC 2007-A14 Read MPEC 2007-A16


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