"Pseudo-MPEC" for S/2003 J 18

Created Fri Oct 10 11:20:15 2003 using Find_Orb


 Astrometry 
 Observing stations 
 Orbital elements 
 Residuals 
 Ephemeris 

Astrometry:
    SK03J180  C2003 02 06.41870 09 07 17.87 +16 34 51.6          23   R      568
    SK03J180  C2003 02 06.42861 09 07 17.55 +16 34 53.2          23   R      568
    SK03J180  C2003 02 06.44678 09 07 16.99 +16 34 56.3          23   R      568
    SK03J180  C2003 02 24.40752 08 58 30.32 +17 22 32.2                      568
    SK03J180  C2003 02 24.42232 08 58 29.91 +17 22 34.5          23.4 R      568
    SK03J180  C2003 02 24.43668 08 58 29.52 +17 22 36.6          23.3 R      568
    SK03J180  C2003 02 24.45756 08 58 28.91 +17 22 39.3                      568
    SK03J180  C2003 02 24.48178 08 58 28.24 +17 22 42.7          23.2 R      568
    SK03J180  C2003 02 27.42703 08 57 11.77 +17 29 43.6          23.4 R      568
    SK03J180  C2003 02 27.44190 08 57 11.36 +17 29 45.9          23.5 R      568
    SK03J180  C2003 02 27.45685 08 57 10.98 +17 29 47.7          23.6 R      568
    SK03J180  C2003 03 25.28077 08 49 33.06 +18 15 24.8                      568
    SK03J180  C2003 03 25.29704 08 49 32.90 +18 15 25.9                      568
    SK03J180  C2003 03 25.31153 08 49 32.77 +18 15 26.7                      568
    SK03J180  C2003 03 27.29887 08 49 16.10 +18 17 37.8          23.7 R      568
    SK03J180  C2003 03 27.31397 08 49 16.00 +18 17 38.6          23.7 R      568
    SK03J180  C2003 03 27.33302 08 49 15.83 +18 17 40.2          23.6 R      568

Station data:
(568) Mauna Kea (N19.8262 W155.4722).   Observers D. C. Jewitt, S. S.
    Sheppard, J. Kleyna.  Measurer S. S. Sheppard.  8.3-m Subaru reflector +
    CCD.

Orbital elements:
S/2003 J 18
   Perijove 2003 Oct 13.345181 TT =  8:17:03 (JD 2452925.845181)
Epoch 2003 Mar 22.0 TT = JDT 2452720.5                  Find_Orb
M 232.61793              (2000.0)            P               Q
n   0.62033142     Peri.  113.88554      0.39387781      0.91912659     
a   0.1340776      Node   180.83239      0.49515163     -0.20469443     
e   0.1381048      Incl.  145.83123      0.77439339     -0.33661030     
P   1.59 /580.32d  H   16.1           G   0.15      q 0.1155609
From 17 observations 2003 Feb. 6-Mar. 27;   RMS error 0.294 arcseconds

Residuals in arcseconds:
030206 568  .00   .04+    030224 568  .40-  .29-    030325 568  .07+  .01-    
030206 568  .09-  .02-    030224 568  .52-  .37-    030325 568  .26+  .20-    
030206 568  .14+  .04+    030227 568  .34+  .19+    030327 568  .33-  .00     
030224 568  .13+  .15-    030227 568  .02+  .43+    030327 568  .05+  .14-    
030224 568  .08+  .00     030227 568  .15+  .17+    030327 568  .10-  .28+    
030224 568  .14+  .03+    030325 568  .06+  .02+    

Ephemerides:
Da Mon Year   RA              Dec         delta   r     elong mag
-- --- ----  ------------   ------------  ------ ------ ----- ---
15 Oct 2003  10 44 50.325   +09 34 28.25  6.0942 5.3965  42.2 24.2
20 Oct 2003  10 48 16.283   +09 14 06.15  6.0306 5.3894  46.2 24.2
25 Oct 2003  10 51 35.636   +08 54 11.26  5.9631 5.3823  50.3 24.2
30 Oct 2003  10 54 47.567   +08 34 49.53  5.8920 5.3751  54.4 24.2
 4 Nov 2003  10 57 51.300   +08 16 06.75  5.8176 5.3680  58.6 24.2
 9 Nov 2003  11 00 46.124   +07 58 08.18  5.7404 5.3610  62.8 24.2
14 Nov 2003  11 03 31.288   +07 40 59.19  5.6607 5.3541  67.1 24.2
19 Nov 2003  11 06 05.956   +07 24 45.66  5.5789 5.3474  71.5 24.2
24 Nov 2003  11 08 29.200   +07 09 34.06  5.4954 5.3408  75.9 24.1
29 Nov 2003  11 10 40.081   +06 55 31.01  5.4107 5.3344  80.3 24.1
 4 Dec 2003  11 12 37.779   +06 42 42.25  5.3253 5.3283  84.9 24.1
 9 Dec 2003  11 14 21.539   +06 31 12.90  5.2397 5.3224  89.5 24.0
14 Dec 2003  11 15 50.586   +06 21 08.05  5.1544 5.3169  94.1 24.0
19 Dec 2003  11 17 04.115   +06 12 32.96  5.0699 5.3117  98.9 24.0
24 Dec 2003  11 18 01.340   +06 05 32.81  4.9869 5.3069 103.7 23.9