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IAU Minor Planet Center

Minor Planet Center

MPEC 2004-Q33 : COMET C/2004 D1 (NEAT)

The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.


Read MPEC 2004-Q32 Read MPEC 2004-Q34


M.P.E.C. 2004-Q33                                Issued 2004 Aug. 23, 14:42 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.

                  Supported in part by the Brinson Foundation
             Prepared using the Tamkin Foundation Computer Network

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

                            COMET C/2004 D1 (NEAT)

Observations:
    CK04D010  C2004 07 20.75472 05 11 19.22 +33 33 10.0                 EQ033D74
    CK04D010  C2004 07 20.77146 05 11 19.94 +33 33 14.8                 EQ033D74
    CK04D010  C2004 07 27.74183 05 16 13.29 +34 03 36.4          19.1 T EQ033D74
    CK04D010  C2004 07 27.77449 05 16 14.60 +34 03 45.6          19.5 T EQ033D74
    CK04D010  C2004 07 27.78433 05 16 15.02 +34 03 48.3          19.4 T EQ033D74
    CK04D010  C2004 07 27.79493 05 16 15.43 +34 03 51.4          19.5 T EQ033D74
    CK04D010  C2004 08 19.40211 05 30 43.31 +35 48 15.6          18.9 T EQ033704
    CK04D010  C2004 08 19.42245 05 30 44.03 +35 48 22.2          19.3 T EQ033704
    CK04D010  C2004 08 19.43253 05 30 44.37 +35 48 25.3          19.5 T EQ033704
    CK04D010  C2004 08 19.44264 05 30 44.76 +35 48 27.9          19.1 T EQ033704

Observer details:
704 Lincoln Laboratory ETS, New Mexico.  Observers M. Blythe, F. Shelly,
    M. Bezpalko, R. Huber, L. Manguso, D. Torres, R. Kracke, M. McCleary,
    H. Stange, A. Milner.  Measurers J. Stuart, R. Sayer, J. Evans, J. Kommers.
    1.0-m f/2.15 reflector + CCD.
D74 Nakagawa.  Observers H. Hori, H. Maeno.  1.13-m f/6.75 reflector + CCD.

Orbital elements:
    C/2004 D1 (NEAT)
Epoch 2006 Jan. 25.0 TT = JDT 2453760.5
T 2006 Feb. 10.81311 TT                                 MPC
q   4.9745193            (2000.0)            P               Q
z  -0.0002891      Peri.   75.54147     -0.48400244     -0.60557696
 +/-0.0000329      Node    62.25404     +0.21751083     -0.78246420
e   1.0014382      Incl.   45.54044     +0.84760290     -0.14500457
Residuals in seconds of arc
031222 704  0.4+  1.5+    040220 246  0.4-  0.2+    040226 926  0.5-  0.3-
031222 704  0.1+  0.8+    040220 246  0.2+  0.2+    040227 448  0.0   0.7-
031222 704  0.5-  0.4+    040220 A21  0.1+  0.1+    040227 448  0.2+  0.6-
040217 644  0.4-  0.5-    040220 A21  0.1+  0.0     040227 448  0.9+  0.1-
040217 644  0.4-  0.1+    040220 A21 (3.9-  4.8-)   040301 213 (0.4+  2.3-)
040217 644  0.1-  0.0     040220 A21  0.2-  0.2+    040301 213 (0.1-  2.1-)
040218 493  0.1-  0.1-    040220 A21  0.1+  0.0     040315 204  0.0   0.4-
040218 493  0.5-  0.0     040220 A21 (4.8-  6.0-)   040315 204  0.2+  0.6+
040219 850  0.5-  0.5-    040221 A50  0.4-  0.5-    040720 D74  0.6-  0.8+
040219 850  1.3-  0.2+    040221 A50  1.1+  0.4+    040720 D74  0.6-  1.2+
040219 926  0.3-  1.1-    040221 493  0.3-  0.2+    040727 D74  0.6+  1.0+
040219 926  0.3-  0.0     040222 J95  0.3+  0.3-    040727 D74  0.1+  1.5+
040219 926  0.0   0.1+    040222 J95  0.2+  0.2-    040727 D74  0.3+  1.5+
040219 J95  0.6-  0.4+    040223 J95  0.3+  0.1+    040727 D74  0.0   1.8+
040219 J95  0.2-  0.5+    040223 J95  0.6+  0.1-    040819 704  0.3-  1.8-
040219 J95  0.5+  0.6-    040226 448  0.0   0.5-    040819 704  0.1-  1.2-
040219 620  0.2-  0.4-    040226 448  0.7-  0.9-    040819 704  0.2-  1.0-
040219 620  0.2-  0.2-    040226 448  0.1+  0.3+    040819 704  0.3+  1.4-
040220 246  0.7-  0.0     040226 926  0.4-  0.0
040220 246  0.6+  0.2+    040226 926  0.7-  0.2-

     The "original" and "future" barycentric values of 1/a are +0.000259
and +0.000390 (+/- 0.000033) AU^-1, respectively.

Brian G. Marsden             (C) Copyright 2004 MPC           M.P.E.C. 2004-Q33

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