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IAU Minor Planet Center

Minor Planet Center

MPEC 2007-K76 : COMET C/2007 F1 (LONEOS)

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M.P.E.C. 2007-K76                                Issued 2007 May 31, 15:21 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://www.cfa.harvard.edu/iau/mpc.html  ISSN 1523-6714

                           COMET C/2007 F1 (LONEOS)

Observations:
    CK07F010  C2007 05 18.93029 10 10 04.69 +28 33 19.2          19.4 N EK076147
    CK07F010  C2007 05 18.93735 10 10 04.43 +28 33 18.2          19.3 N EK076147
    CK07F010  C2007 05 19.88863 10 09 32.46 +28 35 38.2          19.0 T EK076215
    CK07F010  C2007 05 27.92538 10 05 57.82 +28 50 32.7          15.7 N EK076J70
    CK07F010  C2007 05 27.92654 10 05 57.93 +28 50 36.1          16.5 N EK076J70

Observer details:
147 Osservatorio Astronomico di Suno.  Observers D. Crespi, S. Foglia,
    G. Galli, S. Minuto.  Measurers D. Crespi, S. Foglia, G. Galli.  0.40-m
    f/4 reflector + CCD.
215 Buchloe.  Observer W. Hasubick.  0.44-m f/4.6 reflector + CCD.
J70 Obs. Astronomico Vega del Thader, El Palmar.  Observer J. P. Navarro P.
    0.20-m Schmidt-Cassegrain + CCD.

Orbital elements:
    C/2007 F1 (LONEOS)
Epoch 2007 Oct. 27.0 TT = JDT 2454400.5
T 2007 Oct. 28.64521 TT                                 MPC
q   0.4016456            (2000.0)            P               Q
z  -0.0003693      Peri.  153.73361     +0.91390993     +0.39031906
 +/-0.0000752      Node   172.87554     -0.08340572     -0.08811992
e   1.0001483      Incl.  116.03104     +0.39725573     -0.91645290
Residuals in seconds of arc
070319 699  0.4+  0.3-    070324 152  1.7+  1.6-    070413 246  0.3+  1.0-
070319 699  0.1-  0.1-    070324 152 (1.2+  2.9+)   070413 246  1.1+  0.5-
070319 699  1.0+  0.7-    070324 152  1.9+  0.5+    070413 246  1.3+  0.0
070319 699 (0.9+  3.9-)   070325 585  1.7-  1.2-    070413 246  1.2+  0.3-
070319 673  0.1-  0.2+    070325 585  0.3+  1.2-    070413 246  1.2+  0.7+
070319 673  1.4+  1.2-    070325 585 (2.4-  1.3-)   070413 246  0.8+  1.3+
070319 673  1.1+  0.0     070325 372  0.3-  0.8+    070415 246  0.5-  1.0+
070319 673  1.5+  0.2-    070325 372  0.3+  0.5+    070415 246  0.3+  0.7+
070319 474  0.9+  1.3-    070405 585  0.4+  0.5+    070415 246  0.0   0.6+
070319 474  1.5+  0.4-    070405 585  0.9-  0.4-    070415 246  0.1-  0.2-
070319 474 (1.8+  6.1-)   070405 585 (2.4+  0.5-)   070415 246  0.4+  0.2+
070320 651  0.3+  1.1+    070405 585  0.6+  1.6-    070415 246  0.4+  0.1-
070320 651  0.7+  1.6+    070407 673  0.5-  0.0     070415 246  0.6-  1.3-
070320 H55  0.6+  0.5+    070407 673  0.2+  0.3+    070416 A32 (7.1+  5.6-)
070320 H55  0.5-  0.7+    070407 673  0.4-  0.6+    070419 215  0.0   0.6-
070320 H55  0.1-  0.3+    070407 673  0.0   0.8-    070420 850 (5.8+  3.4+)
070320 673  0.3+  0.4+    070408 850 (3.9+  6.9+)   070420 850  1.8+  1.6-
070320 673  0.7+  0.3+    070408 850 (4.5+  7.2+)   070421 224 (0.4+  2.2+)
070320 673  1.2+  0.6+    070408 673  0.4-  0.3+    070421 224  0.5+  1.3+
070320 673  0.3+  0.5+    070408 673  0.3-  0.0     070421 224  0.7-  1.0-
070320 235  0.3-  0.0     070408 850  0.6+  0.1-    070422 850  0.1+  0.4+
070320 473  0.7+  0.6+    070408 673  0.2+  0.8+    070422 850 (1.1+  2.2-)
070320 473  1.0+  0.7-    070408 673  0.5+  0.8+    070429 585 (2.5-  0.1-)
070321 J95  0.4-  0.3-    070408 850  1.2+  0.9-    070429 585  0.1+  1.1-
070321 J95  0.0   0.8-    070408 673  0.8+  0.9+    070429 585  1.8-  0.8-
070321 J95  1.6-  0.2+    070408 850  0.1-  2.0-    070430 A33  0.5+  0.0
070321 850  0.7+  0.3-    070408 673  0.8+  1.0+    070504 349 (3.2+  0.9-)
070321 850  0.4+  0.4+    070408 850  0.1+  1.9-    070504 349 (2.8+  1.5-)
070321 658  0.3-  1.3+    070408 850 (2.1+  0.4-)   070508 J70 (1.2+  3.0+)
070321 658  0.9-  0.1+    070408 246  1.0+  1.2+    070508 J70 (1.8+  3.1+)
070321 658  0.2+  0.9+    070408 246  0.4+  0.5+    070510 473 (4.2+  1.8-)
070321 850  0.4-  0.8-    070408 246  0.6-  0.7+    070510 473 (2.7+  2.0-)
070321 J95  0.3-  0.0     070408 246  0.7-  0.4+    070510 473  0.7-  0.4+
070321 J95  0.4-  0.3-    070408 246  0.2-  1.8+    070511 104  0.7-  0.2+
070322 300  0.3-  0.2+    070408 246 (0.8-  2.3+)   070511 104  0.6-  0.0
070322 300  0.3-  1.1+    070408 246  0.5-  0.9+    070511 104  0.8-  1.3+
070322 300  0.8+  0.5+    070408 473  1.1+  1.2+    070511 104  0.7-  0.3+
070322 213  0.2-  0.8+    070408 473 (1.3+  2.1+)   070511 104  0.3+  0.2+
070322 213  0.2-  0.9+    070410 246  1.8-  0.6-    070511 J70 (3.3+  2.4-)
070322 213  0.4-  0.6+    070410 246  1.9-  0.3+    070511 J70 (4.0+  2.0-)
070322 213  0.5-  0.6+    070410 246  1.2-  0.1-    070511 J70 (3.9+  2.4-)
070322 213  1.0-  0.4+    070410 246 (2.2-  0.9+)   070512 213  0.9+  0.1+
070322 J70 (8.1-  5.4-)   070410 246  1.5-  0.4+    070512 213  1.1+  0.1-
070322 J70 (5.5-  6.1-)   070410 246  1.1-  0.4-    070514 585  0.2+  0.8+
070323 850  0.3-  1.1-    070411 A32 (1.0-  3.3-)   070514 585  1.5-  1.5-
070323 850  0.2+  1.6-    070411 215 (2.3+  4.8+)   070514 585  1.7+  0.1-
070323 850  0.9+  0.2+    070411 A32 (0.6-  3.5-)   070518 147  0.8+  0.3+
070323 152  1.3-  0.1+    070412 561  0.7-  0.1+    070518 147  0.6+  1.7-
070323 152  0.2-  1.0-    070412 561  1.7+  0.3-    070519 215  1.5-  0.1-
070323 152  0.3+  0.7-    070412 561 (4.4+  1.9-)   070527 J70 (6.8-  3.3-)
070323 152 (1.8+  3.6-)   070412 A32  0.6-  1.1+    070527 J70 (5.1-  0.0 )
070324 152  0.7-  1.0+    070412 A32  0.3+  0.4-

Ephemeris:
    C/2007 F1 (LONEOS)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2007 05 30    10 05.31   +28 53.3    2.858    2.783    75.5    20.6  16.7
2007 06 09    10 03.52   +29 00.8    2.893    2.647    66.0    20.5  16.5
2007 06 19    10 03.93   +29 01.0    2.913    2.508    57.0    19.9  16.3
2007 06 29    10 06.31   +28 56.4    2.912    2.365    48.6    18.8  16.1
2007 07 09    10 10.48   +28 48.8    2.888    2.219    40.7    17.4  15.8
2007 07 19    10 16.30   +28 39.6    2.838    2.070    33.6    15.8  15.4

     The "original" and "future" barycentric values of 1/a are +0.000679
and -0.000184 (+/- 0.000075) AU^-1, respectively.

Brian G. Marsden             (C) Copyright 2007 MPC           M.P.E.C. 2007-K76

Read MPEC 2007-K75 Read MPEC 2007-K77


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