(233886) 2008 XQ18 = Bi0008


Beobachtungen und Bahndaten (englisch)

     Bi0008   C2002 11 13.50443 04 15 48.05 +19 10 57.9          19.6 R      644
     Bi0008   C2002 11 13.51729 04 15 47.42 +19 10 55.5          19.0 R      644
     Bi0008   C2002 11 13.52778 04 15 46.89 +19 10 54.5          19.1 R      644
     Bi0008   C2002 11 24.26465 04 06 46.19 +18 43 42.7          19.5 R      644
     Bi0008   C2002 11 24.28573 04 06 45.07 +18 43 39.5          19.4 R      644
     Bi0008   C2002 11 24.30801 04 06 43.89 +18 43 36.2          19.5 R      644
     Bi0008   C2002 12 10.33184 03 53 38.38 +18 05 06.0          20.1 R      644
     Bi0008   C2002 12 10.35421 03 53 37.33 +18 05 03.1          20.2 R      644
     Bi0008   C2002 12 10.37899 03 53 36.20 +18 04 59.8          20.1 R      644
     Bi0008   C2002 12 27.29850 03 43 53.83 +17 38 51.7          19.7 R      644
     Bi0008   C2002 12 27.31987 03 43 53.35 +17 38 50.6          20.1 R      644
     Bi0008   C2002 12 27.35281 03 43 52.44 +17 38 48.2          19.6 R      644

Orbital elements:

 (233886) 2008 XQ18

Epoch 2010 Jan. 4.0 TT = JDT 2455200.5                  MPC
M 128.24699              (2000.0)            P               Q
n   0.17313315     Peri.  192.54429     +0.98028176     -0.19760405             T = 2454459.75808 JDT
a   3.1882269      Node   178.85216     +0.18358994     +0.90972274             q =     2.7422961
e   0.1398680      Incl.    1.57444     +0.07309168     +0.36518102
P   5.69           H   16.0           G   0.15           U   0
From 41 observations at 6 oppositions, 1999-2010, mean residual 0".26.
  
Residuals
19990321  645  0.0   0.0     20050409  G96  0.1+  0.0     20081205  691  0.1+  0.0
19990321  645  0.0   0.0     20050409  G96  0.3+  0.2+    20081205  691  0.2-  0.1-
20021113  644  0.1+  0.2+    20050409  G96  0.3-  0.3-    20081205  691  0.0   0.2-
20021113  644  0.1+  0.3-    20050409  G96  0.3+  0.1-    20081229  691  0.2+  0.2+
20021113  644  0.1-  0.3+    20070613  291  0.3-  0.0     20081229  691  0.0   0.0
20021124  644  0.2-  0.1-    20070613  291  0.5-  0.4+    20081229  691  0.3+  0.1+
20021124  644  0.2-  0.1-    20070613  291  0.3-  0.5+    20100216  691  0.3+  0.0
20021124  644  0.1-  0.0     20070910  G96  0.6+  0.2+    20100216  691  0.0   0.4+
20021210  644  0.3+  0.2+    20070910  G96  0.5+  0.0     20100216  691  0.0   0.3+
20021210  644  0.2-  0.2+    20070910  G96  0.5+  0.0     20100217  G96  0.1-  0.3-
20021210  644  0.3-  0.1+    20070910  G96  0.3+  0.0     20100217  G96  0.1-  0.1-
20021227  644  0.2+  0.3+    20081201  691  0.1-  0.1-    20100217  G96  0.1+  0.1+
20021227  644  0.9+  0.4+    20081201  691  0.2-  0.1-    20100217  G96  0.1+  0.0
20021227  644  0.5-  0.1-    20081201  691  0.2-  0.3+

Last observed on 2010 Feb. 17. Perturbed ephemeris below based on elements from MPO 170973.

Discovery date : 2008 12 01
Discovery site : Kitt Peak
Discoverer(s) : Spacewatch 

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Letzte Änderung: 15. Juli 2009 (Harald Bill)