MPEC 1999-O12 : 1997 WT22

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M.P.E.C. 1999-O12                                Issued 1999 July 18, 21:33 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.

             BMARSDEN@CFA.HARVARD.EDU or GWILLIAMS@CFA.HARVARD.EDU
          URL http://cfa-www.harvard.edu/iau/mpc.html  ISSN 1523-6714

                                   1997 WT22

                           Revision to MPEC 1997-X03

Observations:
     J97W22T 1 1988 12 13.37153 08 14 03.73 +32 19 12.6                      675
     J97W22T 1 1988 12 13.42708 08 14 16.58 +32 21 30.5                      675

Observer details:
675 Palomar Mountain.  Observers J. Mueller, C. Brewer.  Trail located and
    measured by A. Boattini and G. Forti.  1.2-m Schmidt.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
881213 675 0.87+ 0.14-    881213 675 0.87+ 0.14-    MPC 32058   -0.20 day

Orbital elements:
1997 WT22
Epoch 1999 Aug. 10.0 TT = JDT 2451400.5                 Williams
M 286.51679              (2000.0)            P               Q
n   0.54418481     Peri.   74.60716     -0.82613965     -0.54704112
a   1.4858391      Node    72.05336     +0.44704348     -0.78223975
e   0.3058791      Incl.    8.16129     +0.34299477     -0.29807212
P   1.81           H   19.0           G   0.15           U   2
Residuals in seconds of arc
881213 675  0.2-  1.3-    971222 658  0.1+  0.0     980201 046  1.9+  0.6+
881213 675  0.2-  1.0-    971222 658  0.0   0.1+    980201 557  0.6+  0.1+
971129 704  0.3-  0.5-    971222 658  0.0   0.0     980201 557  1.0+  0.2+
971129 704  0.9+  0.4-    971224 104  0.1+  0.0     980208 046  0.1+  0.5+
971129 704  0.6+  0.2-    971224 104  0.5+  0.5+    980208 046  0.8-  0.3+
971129 704  0.5+  0.3-    971224 104  0.2-  0.0     980208 046  0.2+  1.6+
971129 704  0.9+  0.3+    971225 566  0.5-  0.1+    980208 046  0.0   0.9+
971130 360  0.5+  1.1+    971225 566  0.2-  0.3+    980223 557  0.6+  0.1+
971130 360  0.3+  0.0     971225 566  0.6-  0.3-    980223 557  0.1-  0.3-
971130 360  0.4+  0.2+    971225 402  0.2+  0.1-    980227 118  0.5+  0.1+
971202 658  0.4+  0.3-    971225 402  0.3+  0.5-    980227 118  0.5+  0.2-
971202 658  0.2+  0.2-    971225 402  0.1+  0.5-    980303 711  0.5+  0.1+
971202 658  0.6+  0.1-    971227 658  0.8-  0.3-    980304 711  0.1+  0.9+
971203 658  0.3+  0.1-    971227 658  0.4-  1.7-    980304 711  0.2+  1.1+
971203 658  0.5+  0.0     971227 658  0.7-  0.7-    980305 711  0.3-  0.6+
971203 658  0.6+  0.2+    971227 587  0.0   0.5+    980311 118  0.4-  0.1+
971204 704  0.4-  0.0     971230 566  0.5-  1.2+    980311 118  0.9+  0.1-
971204 704  0.4-  0.7+    971230 566  0.6-  1.3+    980317 658  0.6-  0.0
971204 704  0.5+  0.4-    971230 566  0.5-  1.5+    980317 658  1.1-  0.1-
971204 704  0.3-  0.4-    971231 046  0.0   0.3+    980317 658  0.8-  0.0
971204 704  0.5-  0.5-    971231 046  0.1+  0.3+    980319 658  0.2+  0.0
971204 402  0.6-  0.2+    971231 046  0.3+  0.4+    980319 658  0.3+  0.8+
971204 402  0.6-  0.1+    980110 658  0.3-  0.1-    980319 658  0.9+  0.2+
971204 402  0.4-  0.0     980110 658  0.2-  0.2-    980323 557  0.4-  0.5-
971205 658  0.6-  0.4-    980110 658  0.5-  1.2-    980323 557  0.5-  0.0
971205 658  0.6-  0.4-    980110 557  0.1-  0.1-    980323 557  1.0-  0.4-
971205 658  0.7-  0.3-    980110 557  0.4+  0.0     980323 118  0.4-  0.3-
971205 046  0.6-  0.3+    980110 118  0.6+  0.2+    980323 118  0.5-  0.3-
971205 046  0.3-  0.3-    980110 557  0.2-  0.0     980328 658  1.2-  0.4+
971205 046  0.3-  1.0-    980110 118  0.6+  0.4+    980328 658  0.8-  0.2+
971205 046  0.4-  0.1+    980110 118  0.4+  0.2+    980328 658  1.1-  0.0
971205 118  0.5-  0.3-    980111 658  0.7-  0.4-    980408 557  0.1+  0.2+
971206 118  0.2-  0.5-    980111 658  0.2-  0.6-    980408 557  0.4+  0.2+
971206 587  0.5-  0.5+    980111 658  0.2-  0.1-    980408 557  0.6+  0.3-
971206 587  0.1-  0.1+    980115 118  0.7+  0.4-    980408 557  0.7-  0.2-
971207 910 (3.1+  1.6-)   980115 118  0.6+  0.5-    980409 046  0.3-  0.3+
971207 910 (3.0+  1.5-)   980115 118  0.5+  0.5-    980409 046  0.1+  0.5-
971207 910 (3.0+  1.4-)   980118 118  0.2+  0.0     980409 046  0.5+  0.1-
971218 658  0.4-  0.7+    980118 118  0.2+  0.1+    980409 046  0.1-  0.1+
971218 658  0.4-  1.0+    980118 118  0.8+  0.4+    980409 046  0.1-  0.3+
971218 658  0.1+  0.8+    980124 118  0.0   0.9-    980409 118  0.1+  0.4+
971218 046  0.3+  0.6+    980124 118  0.1+  0.8-    980409 118  0.0   1.0+
971218 046  0.5-  0.4+    980124 118  0.1+  0.5-    980416 658  0.5-  0.8-
971218 046  0.2-  0.0     980126 118  0.6+  0.3+    980416 658 (2.9-  0.6+)
971221 360  0.1-  0.0     980126 118  0.1+  0.1+    980416 658  1.2-  0.2-
971221 360  0.2-  0.1+    980127 360  0.3+  0.0     980429 557  0.8+  0.3-
971221 360  0.0   0.1+    980127 360  0.5-  0.0     980430 402 (3.7+  2.4-)
971221 046  0.1-  0.3+    980127 360  0.2+  0.3+    980430 402  1.8+  1.2-
971221 046  0.3-  0.1+    980201 046  1.2+  0.1-    980430 402  0.0   0.7-
971221 046  0.1+  0.2+    980201 046  1.1+  0.1+    980518 611 (2.8+  1.9-)

Gareth V. Williams           (C) Copyright 1999 MPC           M.P.E.C. 1999-O12

Read MPEC 1999-O11 Read MPEC 1999-O13

• 1997-B01 (the full form)
• J97B01 (the packed version of the full form)
• B01 (the abbreviated form)