December 25, 2004 12:22:13 UT

Orbital elements:
    P/2004 Y1 (Christensen)
Epoch 1997 July 11.0 TT = JDT 2450640.5
T 1997 July 22.18009 TT                                 Sato
q   1.6427059            (2000.0)            P               Q
n   0.14279444     Peri.  325.29569     +0.56419304     -0.77685208
a   3.6251710      Node    88.76633     +0.80663117     +0.44637002
e   0.5468611      Incl.   16.24136     +0.17616000     +0.44413357 
P   6.90

Epoch 2004 June 4.0 TT = JDT 2453160.5
T 2004 June 21.89354 TT                                 Sato
q   1.6457475            (2000.0)            P               Q
n   0.14260456     Peri.  325.45246     +0.56315517     -0.77760455
a   3.6283883      Node    88.68927     +0.80715727     +0.44511836
e   0.5464246      Incl.   16.24190     +0.17706887     +0.44407295
P   6.91
From 54 observations 1998 Jan. 24-2004 Dec. 24, mean residual 0".79.
Residuals in seconds of arc
980124 566  0.1+  1.0-   041209 704  0.8-  0.3+   041222 673  1.5+  0.8+  
980124 566  0.3-  0.8-   041209 704  0.3+  0.2-   041222 703  1.2-  0.3+  
980124 566  0.1-  1.0-   041209 704 (2.1+  2.8+)  041222 703  1.3-  0.0   
980418 699  0.4+  0.1+   041215 704  0.1+  0.0    041222 703  1.6-  0.6-  
980418 699  0.4-  0.0    041215 704  0.5-  0.6-   041223 D83  1.7-  0.2+  
980418 699  0.7-  0.7-   041215 704  0.5+  0.0    041223 D83  1.4+  0.1-  
041019 704  0.2-  0.2-   041215 704  0.3+  0.5+   041223 D83  0.4+  0.2-  
041019 704  0.5+  0.8-   041215 704  0.3-  1.0+   041223 D83  0.8+  1.2-  
041019 704  0.4+  0.4-   041221 703  0.5-  0.1-   041223 349  0.8-  0.2-  
041021 704  0.9+  0.2+   041221 703  1.0-  0.4-   041223 349  0.6-  0.1+  
041021 704  0.7-  0.1-   041221 703  1.0-  0.4-   041223 349  0.4-  0.2+  
041021 704  0.7+  0.7+   041221 703  1.9-  0.6-   041223 372  0.7+  0.8-  
041021 704  0.8-  0.2+   041222 673  1.7+  1.6+   041223 372  0.6+  0.3+  
041021 704  1.5-  0.1+   041222 673  1.7+  1.3+   041223 372  0.6+  0.3-  
041119 704  0.4-  0.8-   041222 673  1.5+  1.6+   041224 A61  0.1+  0.9+  
041119 704  0.2+  0.4-   041222 673  1.7+  1.1+   041224 A61  0.2+  0.5-  
041119 704  0.2+  0.0    041222 673  1.5+  0.9+   041224 A61  0.7+  0.4-  
041209 704  0.3+  0.3-   041222 673  1.1+  0.4+   
041209 704  0.9-  0.1+   041222 703  1.2-  0.2-   


December 22, 2004 22:38:09 UT

Orbital elements:
    P/2004 Y1 (Christensen)
T 2004 June 21.5924 TT                                  Sato
q   1.645862             (2000.0)            P               Q
n   0.1434409      Peri.  325.3654      +0.5643357      -0.7767477
a   3.614272       Node    88.6893      +0.8064804      +0.4463438
e   0.544621       Incl.   16.2420      +0.1763932      +0.4443424
P   6.87
From 24 observations 2004 Dec. 9-22, mean residual 0".92.
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