"Pseudo-MPEC" for C/2005A1

Created Wed Apr 20 20:38:24 2005 using Find_Orb

 Astrometry 
 Observing stations 
 Orbital elements 
 Residuals 
 Ephemeris 

Astrometry:
    CK05A010  C2005 01 17.15142 13 55 28.69 -19 58 39.6                x     048
    CK05A010  C2005 01 17.15182 13 55 28.71 -19 58 40.7                x     048
    CK05A010  C2005 01 17.15223 13 55 28.72 -19 58 41.7                x     048
    CK05A010  C2005 01 17.15263 13 55 28.76 -19 58 43.1                x     048
    CK05A010  C2005 01 17.15304 13 55 28.76 -19 58 43.6                x     048
    CK05A010  C2005 01 19.79028 13 58 42.77 -22 01 15.2                      D83
    CK05A010  C2005 01 19.79769 13 58 43.27 -22 01 36.3                x     D83
    CK05A010  C2005 01 19.80139 13 58 43.64 -22 01 47.6          12.7 T      D83
    CK05A010  C2005 01 20.73163 13 59 53.87 -22 47 21.3                      349
    CK05A010  C2005 01 20.73634 13 59 54.22 -22 47 35.5                      349
    CK05A010  C2005 01 20.74117 13 59 54.57 -22 47 49.9                      349
    CK05A010  C2005 01 20.74587 13 59 54.93 -22 48 04.0          13.0 T      349
    CK05A010  C2005 01 21.81535 14 01 16.71 -23 42 06.4                      349
    CK05A010  C2005 01 21.81700 14 01 16.84 -23 42 11.8                      349
    CK05A010  C2005 01 21.81866 14 01 16.96 -23 42 16.8          12.8 T      349
    CK05A010  C2005 01 21.82207 14 01 17.23 -23 42 27.9                x     D83
    CK05A010  C2005 01 21.82574 14 01 17.54 -23 42 38.1                      D83
    CK05A010  C2005 01 21.82757 14 01 17.64 -23 42 44.4                      D83
    CK05A010  C2005 01 21.82939 14 01 17.80 -23 42 49.7          12.6 T      D83
    CK05A010  C2005 01 21.86323 14 01 20.40 -23 44 34.3          12.8 T      360
    CK05A010  C2005 01 21.86529 14 01 20.56 -23 44 40.7                      360
    CK05A010  C2005 01 21.86736 14 01 20.71 -23 44 47.1                      360
    CK05A010  C2005 01 22.14258 14 01 42.15 -23 58 59.9          14.1 N      213
    CK05A010  C2005 01 22.17182 14 01 44.36 -24 00 30.8          14.0 Nx     213
    CK05A010  C2005 01 22.18184 14 01 45.12 -24 01 01.9          14.1 Nx     213
    CK05A010  C2005 01 22.24200 14 01 49.70 -24 04 10.1          14.0 N      213
    CK05A010  C2005 01 23.29083 14 03 12.35 -24 59 31.1          14.1 Tx     844
    CK05A010  C2005 01 23.29277 14 03 12.49 -24 59 37.3          14.2 Tx     844
    CK05A010  C2005 01 23.29527 14 03 12.69 -24 59 45.4          14.1 Tx     844
    CK05A010  C2005 01 26.79440 14 08 00.59 -28 18 51.5                      349
    CK05A010  C2005 01 26.79771 14 08 00.85 -28 19 03.7                      349
    CK05A010  C2005 01 26.80102 14 08 01.11 -28 19 15.5          12.7 T      349
    CK05A010  C2005 01 30.13697 14 12 59.63 -31 51 05.0          13.5 N      213
    CK05A010  C2005 01 30.14536 14 13 00.32 -31 51 37.1          13.5 Nx     213
    CK05A010  C2005 01 30.15623 14 13 01.40 -31 52 22.2          13.4 N      213
    CK05A010  C2005 01 31.75838 14 15 35.71 -33 42 40.4                      349
    CK05A010  C2005 01 31.76209 14 15 36.05 -33 42 55.8                      349
    CK05A010  C2005 01 31.76582 14 15 36.43 -33 43 12.2          12.4 T      349
    CK05A010  C2005 02 04.81215 14 22 49.09 -38 48 58.9                      349
    CK05A010  C2005 02 04.81464 14 22 49.37 -38 49 11.0                      349
    CK05A010  C2005 02 04.81714 14 22 49.62 -38 49 23.1                      349
    CK05A010  C2005 02 04.81963 14 22 49.89 -38 49 35.0          12.0 T      349
    CK05A010  C2005 02 05.84146 14 24 51.62 -40 13 21.3                      349
    CK05A010  C2005 02 05.84339 14 24 51.84 -40 13 31.0                      349
    CK05A010  C2005 02 05.84714 14 24 52.32 -40 13 50.0                      349
    CK05A010  C2005 02 05.84963 14 24 52.60 -40 14 01.9          11.9 T      349
    CK05A010   2005 02 06.79201 14 26 50.86 -41 33 43.8          13.1 T      372
    CK05A010   2005 02 06.80660 14 26 52.64 -41 34 59.7          13.0 T      372
    CK05A010   2005 02 06.81007 14 26 53.07 -41 35 17.5                      372
    CK05A010  C2005 02 08.32468 14 30 15.94 -43 48 22.2          13.4 N      I77
    CK05A010  C2005 02 08.32568 14 30 16.08 -43 48 27.6          13.4 N      I77
    CK05A010  C2005 02 08.32619 14 30 16.16 -43 48 30.4          13.6 N      I77
    CK05A010  C2005 02 08.32670 14 30 16.27 -43 48 33.3          13.6 N      I77
    CK05A010  C2005 02 08.32771 14 30 16.37 -43 48 38.8          13.5 N      I77
    CK05A010   2005 02 08.78333 14 31 21.14 -44 30 00.8          13.0 Tx     372
    CK05A010   2005 02 08.82448 14 31 26.90 -44 33 46.6          13.0 Tx     372
    CK05A010  C2005 02 10.17999 14 34 51.58 -46 39 49.1                      834
    CK05A010  C2005 02 10.20412 14 34 55.35 -46 42 07.8                      834
    CK05A010  C2005 02 11.32375 14 37 58.51 -48 30 17.8          12.7 Nx     I77
    CK05A010  C2005 02 11.32532 14 37 58.76 -48 30 27.3          13.2 Nx     I77
    CK05A010  C2005 02 11.32564 14 37 58.88 -48 30 29.0          12.9 Nx     I77
    CK05A010  C2005 02 11.32657 14 37 58.43 -48 30 35.6          13.3 Nx     I77
    CK05A010  C2005 02 11.58642 14 38 44.32 -48 56 02.5          14.4 Nx     415
    CK05A010  C2005 02 11.58824 14 38 44.60 -48 56 13.1          14.3 N      415
    CK05A010   2005 02 11.76389 14 39 15.10 -49 13 47.3          12.9 Tx     372
    CK05A010   2005 02 11.76910 14 39 15.95 -49 14 17.7                      372
    CK05A010  C2005 02 17.32094 15 00 21.77 -59 02 37.4          13.3 N      I77
    CK05A010  C2005 02 17.32175 15 00 21.99 -59 02 42.8          13.3 N      I77
    CK05A010  C2005 02 17.32214 15 00 22.11 -59 02 45.4          13.5 N      I77
    CK05A010  C2005 02 17.32255 15 00 22.24 -59 02 48.1          13.2 N      I77
    CK05A010  C2005 02 18.19515 15 04 58.02 -60 41 00.1                      834
    CK05A010  C2005 02 18.22084 15 05 06.50 -60 43 56.0                      834
    CK05A010  C2005 02 18.24404 15 05 14.08 -60 46 34.8                      834
    CK05A010  C2005 02 19.20529 15 10 56.13 -62 36 11.1                      834
    CK05A010  C2005 02 19.22480 15 11 03.44 -62 38 26.3                      834
    CK05A010  C2005 02 19.23803 15 11 08.38 -62 39 57.6                      834
    CK05A010  C2005 02 19.26936 15 11 20.20 -62 43 34.1                      834
    CK05A010  C2005 02 22.22012 15 34 53.06 -68 24 16.8          13.2 N      I77
    CK05A010  C2005 02 22.22083 15 34 53.41 -68 24 21.5          13.2 N      I77
    CK05A010  C2005 02 22.22120 15 34 53.71 -68 24 24.3          13.2 N      I77
    CK05A010  C2005 02 22.22156 15 34 53.95 -68 24 26.6          13.2 N      I77
    CK05A010  C2005 02 22.22230 15 34 54.34 -68 24 31.8          13.2 N      I77
    CK05A010  C2005 03 01.16174 18 10 23.09 -79 55 30.3                      834
    CK05A010  C2005 03 01.17924 18 11 09.13 -79 56 35.1                      834
    CK05A010  C2005 03 01.19584 18 11 53.28 -79 57 36.4                      834
    CK05A010  C2005 03 01.22550 18 13 12.25 -79 59 24.6                      834
    CK05A010  C2005 03 03.16266 19 52 04.82 -81 06 28.7                      834
    CK05A010  C2005 03 03.18527 19 53 20.15 -81 06 38.6                      834
    CK05A010  C2005 03 04.18068 20 47 39.31 -80 58 05.4                      834
    CK05A010  C2005 03 04.19693 20 48 31.15 -80 57 43.2                      834
    CK05A010  C2005 03 04.35001 20 56 33.84 -80 53 56.3          12.2 T      844
    CK05A010  C2005 03 04.35192 20 56 39.85 -80 53 53.1          11.9 T      844
    CK05A010  C2005 03 04.35598 20 56 52.38 -80 53 46.8          11.8 T      844
    CK05A010  C2005 03 04.35955 20 57 03.50 -80 53 41.0          12.0 T      844
    CK05A010  C2005 03 04.36313 20 57 14.59 -80 53 35.4          12.4 T      844
    CK05A010  C2005 03 09.00522 23 36 47.50 -75 33 10.5                      834
    CK05A010  C2005 03 09.01795 23 37 02.60 -75 31 59.6                x     834
    CK05A010  C2005 03 09.03759 23 37 25.48 -75 30 11.0                      834
    CK05A010  C2005 03 09.99852 23 54 07.67 -74 00 44.5                      834
    CK05A010  C2005 03 10.00966 23 54 18.16 -73 59 40.4                x     834
    CK05A010  C2005 03 11.00824 00 08 22.64 -72 24 39.2                      834
    CK05A010  C2005 03 11.02579 00 08 36.00 -72 22 57.6                      834
    CK05A010  C2005 03 11.04243 00 08 48.82 -72 21 21.1                x     834
    CK05A010  C2005 03 11.33742 00 12 25.94 -71 53 07.6          12.8 Nx     467
    CK05A010  C2005 03 11.33807 00 12 26.40 -71 53 03.8          12.8 Nx     467
    CK05A010  C2005 03 11.33872 00 12 26.87 -71 53 00.0          12.8 Nx     467
    CK05A010  C2005 03 14.97689 00 44 25.06 -66 07 12.0                      834
    CK05A010  C2005 03 14.99365 00 44 31.58 -66 05 37.6                      834
    CK05A010  C2005 03 15.01587 00 44 40.21 -66 03 32.1                x     834
    CK05A010  C2005 03 15.98524 00 50 27.92 -64 34 10.0                x     834
    CK05A010  C2005 03 15.99779 00 50 32.12 -64 33 00.7                x     834
    CK05A010  C2005 03 16.01192 00 50 36.85 -64 31 42.8                x     834
    CK05A010  C2005 03 17.04029 00 55 56.81 -62 58 43.4          12.5 Tx     I30
    CK05A010  C2005 03 17.04223 00 55 57.37 -62 58 32.1          12.6 Tx     I30
    CK05A010  C2005 03 17.08221 00 56 09.26 -62 54 56.0          12.5 Tx     I30
    CK05A010  C2005 03 17.08415 00 56 09.95 -62 54 45.0          12.6 Tx     I30
    CK05A010  C2005 03 22.45488 01 15 19.32 -55 23 52.7          12.1 Nx     D87
    CK05A010  C2005 03 22.46045 01 15 20.20 -55 23 27.5          12.4 N      D87
    CK05A010  C2005 03 22.46412 01 15 20.81 -55 23 09.2          12.5 Nx     D87
    CK05A010  C2005 03 24.97112 01 21 14.53 -52 12 48.3          12.5 Nx     844
    CK05A010  C2005 03 24.97703 01 21 15.77 -52 12 24.7          13.0 Nx     844
    CK05A010  C2005 03 24.98295 01 21 15.94 -52 12 00.2          13.3 Nx     844
    CK05A010  C2005 03 24.98881 01 21 17.18 -52 11 31.0          13.8 Nx     844
    CK05A010  C2005 03 24.99471 01 21 18.14 -52 11 06.0          14.9 Nx     844
    CK05A010  C2005 03 28.39598 01 27 29.63 -48 11 52.2          13.1 Nx     415
    CK05A010  C2005 03 28.39677 01 27 29.69 -48 11 48.3          13.2 Nx     415
    CK05A010  C2005 03 28.39759 01 27 29.77 -48 11 44.5          13.0 Nx     415

Station data:
(048) Hradec Kralove (N50.1773 E15.8408).   Observer M. Lekhy.  0.40-m f/5
    reflector + CCD.
(213) Observatorio Montcabre (N41.5186 E2.3850).   Observer R. Naves.
    Measurer M. Campas.  0.30-m f/5.5 Schmidt-Cassegrain + CCD.
(349) Ageo  (N35.9604 E139.5492).   Observer K. Kadota.  0.25-m f/5.0
    reflector + CCD.
(360) Kuma Kogen  (N33.6743 E132.9442).   Observer A. Nakamura.  0.60-m f/5.8
    Ritchey-Chretien + CCD.
(372) Geisei  (N33.5266 E133.8276).
(415) Kambah, near Canberra  (S35.3970 E149.0636).
(467) Auckland Observatory (S36.9079 E174.7766).
(834) Buenos Aires-AAAA (S34.6052 W58.4346).   Observers R. Mackintosh, R.
    Caprio, P. Kelis.  Measurer R. Mackintosh.
(844) Los Molinos (S34.7555 W56.1902).
(D83) Miwa  (N36.4964 E138.4681).
(D87) Brooklyn Park  (S34.9261 E138.5500).
(I30) Observatorio Geminis Austral (S32.9845 W60.6583).
(I77) CEAMIG-REA Observatory, Belo Horizonte (S19.8303 W43.9975).

Orbital elements:
C/2005A1
   Perihelion 2005 Apr 10.217750 TT
Epoch 2005 Mar 11.0 TT = JDT 2453440.5
q   0.906960             (2000.0)            P               Q
H   12.0           Peri.  271.85505      0.01348555     -0.99747970     
                   Node   355.86227      0.14323294      0.07087394     
e   1.0008827      Incl.   74.88806     -0.98959712     -0.00333477     
From 82 observations 2005 Jan. 19-Mar. 22;   RMS error 0.483 arcseconds


Residuals in arcseconds:
050117 048( .71-  3.1+)   050205 349  .45-  .24+    050303 834  .28+  .13+    
050117 048( .83-  3.1+)   050205 349  .04-  .02-    050303 834  .36+  .14+    
050117 048( 1.1-  3.2+)   050205 349  .21-  .52+    050304 834  .27+  .15+    
050117 048( .93-  2.9+)   050206 372  .39-  .65+    050304 834  .21+  .22+    
050117 048( 1.3-  3.5+)   050206 372  .80-  .04+    050304 844  .26-  .33-    
050119 D83  .74-  .26+    050206 372  .82-  .14+    050304 844  .13-  .20-    
050119 D83( 1.3-  .67+)   050208 I77  .03+  .30-    050304 844  .41-  .46-    
050119 D83  .11+  .11+    050208 I77  .09+  .30-    050304 844  .41-  .45-    
050120 349  .36-  .12+    050208 I77  .21+  .34-    050304 844  .53-  .68-    
050120 349  .36-  .00     050208 I77  .65+  .49-    050309 834  .03+  .22+    
050120 349  .48-  .05+    050208 I77  .26+  .53-    050309 834( .72+  .67+)   
050120 349  .33-  .00     050208 372( .16-  1.7-)   050309 834  .46+  .55+    
050121 349  .42-  .06+    050208 372( .04-  1.8-)   050309 834  .49+  .35+    
050121 349  .33-  .25-    050210 834  .33+  .04-    050310 834( .47+  .84+)   
050121 349  .39-  .13-    050210 834  .46+  .41-    050311 834  .35+  .63+    
050121 D83( .28-  .68-)   050211 I77( 2.2+  .39+)   050311 834  .08-  .63+    
050121 D83  .20+  .44+    050211 I77( 2.1+  .14+)   050311 834( .31+  .82+)   
050121 D83  .31-  .21-    050211 I77( 2.8+  .32+)   050311 467( .46+  .79+)   
050121 D83  .01+  .10+    050211 I77( 3.2-  .81-)   050311 467( .42+  .82+)   
050121 360  .37+  .25-    050211 415( .88+  .64-)   050311 467( .44+  .85+)   
050121 360  .44+  .29-    050211 415  .54+  .40-    050314 834  .22+  .45+    
050121 360  .38+  .30-    050211 372( 1.5+  .67-)   050314 834  .39+  .52+    
050122 213  .71-  .01+    050211 372  1.0+  .03+    050315 834( .55+  1.0+)   
050122 213( .80-  .35+)   050217 I77  .01-  .02+    050315 834( .73+  1.0+)   
050122 213( .77-  .52+)   050217 I77  .13-  .07+    050315 834( .65+  .96+)   
050122 213  .34-  .11+    050217 I77  .08-  .09+    050316 834( .57+  .79+)   
050123 844( .92-  .06+)   050217 I77  .00   .14+    050317 I30( .29-  .63+)   
050123 844( 1.1-  .14+)   050218 834  .06+  .06+    050317 I30( .35-  1.4+)   
050123 844( .97-  .12+)   050218 834  .24+  .05-    050317 I30( .69+  1.6+)   
050126 349  .22-  .01+    050218 834  .19-  .14-    050317 I30( 1.5+  2.1+)   
050126 349  .42-  .24-    050219 834  .15+  .36-    050322 D87( .52+  .93+)   
050126 349  .61-  .08-    050219 834  .08+  .57-    050322 D87  .44+  .29-    
050130 213  .27-  .30-    050219 834  .09-  .35-    050322 D87( .64+  .60+)   
050130 213( 1.2-  1.4+)   050219 834  .27+  .21-    050324 844( .08-  1.6-)   
050130 213  .13-  .14+    050222 I77  .14+  .27-    050324 844( 4.5+  4.2-)   
050131 349  .33-  .02+    050222 I77  .25-  .02-    050324 844( .86-  6.0-)   
050131 349  .53-  .39+    050222 I77  .20+  .25-    050324 844( 3.7+  2.9-)   
050131 349  .26-  .15-    050222 I77  .34+  .04-    050324 844( 5.7+  4.1-)   
050204 349  .07+  .52+    050222 I77  .07+  .09-    050328 415( .74+  .94+)   
050204 349  .06+  .47+    050301 834  .22+  .21+    050328 415( .59+  1.6+)   
050204 349  .31-  .48+    050301 834  .37-  .17+    050328 415( .60+  2.1+)   
050204 349  .43-  .64+    050301 834  .04+  .05-    
050205 349  .36-  .29+    050301 834  .31+  .04+    

Ephemerides (For E, N):
Date (UT)     RA              Dec         delta   r     elong mag
-- --- ----  ------------   ------------  ------ ------ ----- ---
 1 Jan 2005  13 37 17.205   -10 12 30.38  1.8810 1.8726  74.3 16.2
 2 Jan 2005  13 38 21.798   -10 42 28.20  1.8548 1.8598  74.9 16.1
 3 Jan 2005  13 39 26.669   -11 13 06.53  1.8286 1.8470  75.5 16.1
 4 Jan 2005  13 40 31.836   -11 44 27.09  1.8024 1.8342  76.1 16.0
 5 Jan 2005  13 41 37.320   -12 16 31.71  1.7763 1.8214  76.7 15.9
 6 Jan 2005  13 42 43.141   -12 49 22.26  1.7502 1.8087  77.3 15.9
 7 Jan 2005  13 43 49.323   -13 23 00.73  1.7242 1.7959  77.8 15.8
 8 Jan 2005  13 44 55.890   -13 57 29.21  1.6983 1.7831  78.4 15.8
 9 Jan 2005  13 46 02.870   -14 32 49.86  1.6724 1.7703  79.0 15.7
10 Jan 2005  13 47 10.293   -15 09 04.98  1.6466 1.7575  79.5 15.6