(95626) 2002 GZ32 Precovery Images

(95626) 2002 GZ32 Precovery Images


(95626) 2002 GZ32 is actually a Centaur, but is included with the TNOs for completeness.

Two new images extend the arc of this well-observed object back to 1995.

The following astrometry was submitted to the Minor Planet Center:

95626          1995 03 29.24097 10 49 16.73 +20 31 15.4                      261
95626          1996 05 08.19618 10 59 20.23 +19 52 46.9                      261
At the end of this page are the elements and residuals before and with the new data. The new orbit is much more accurate because the object has now been observed for 12 years instead of six years (when this astrometry was submitted in 2007).

View the Discovery Announcement. See also MPEC 2002-X23.


1996 May 08.19618 UTC

RA 10h59m20.23s Dec. +1952'46.9"

65-minute exposure

Size = 150" x 150"

Palomar Mountain-DSS plate XP569-A2FE

1995 Mar. 29.24097 UTC

RA 10h49m16.73s Dec. +2031'15.4"

70-minute exposure

Size = 150" x 150"

Palomar Mountain-DSS plate XJ569-A14T


Original elements and residuals from the Minor Planet Center

(95626) 2002 GZ32

Epoch 2007 Oct. 27.0 TT = JDT 2454400.5                 MPC
M 322.43187              (2000.0)            P               Q
n   0.00883372     Peri.  154.54324     -0.12668781     +0.96061778             T = 2458653.31025 JDT
a  23.1760985      Node   107.36840     -0.94863891     -0.04446894             q =    18.0218331
e   0.2223957      Incl.   15.01832     -0.28988689     -0.27429180
P 112              H    6.8           G   0.15           U   2
From 59 observations at 5 oppositions, 2001-2006, mean residual 0".51.
  
Residuals
20010324  608  0.9-  0.5+    20020602  246  0.5-  0.1-    20040221  621  0.4-  0.1-
20020401  644  0.0   0.1-    20020602  246  0.9+  0.4-    20040224  621  0.1-  0.2-
20020413  568  0.5+  0.3-    20020605  568  0.6+  0.8-    20040224  621  0.2+  0.0
20020413  568  0.5+  0.2-    20020605  568  0.3+  0.6-    20040312  644  0.0   0.2+
20020413  568  0.3+  0.0     20020605  568  0.4+  0.7-    20040312  644  0.1-  0.3+
20020506  644  0.5-  0.4-    20020605  568  0.3+  0.6-    20040312  644  0.1+  0.1+
20020506  644  0.5-  0.3-    20020605  568  0.4+  0.7-    20040419  850 (1.5+  2.0+)
20020506  644  0.3-  0.5-    20020605  568  0.2+  0.6-    20040419  850 (0.1+  1.6+)
20020508  568  0.3-  0.6-    20021130  568  0.2+  0.3-    20040526  304  0.4+  0.2-
20020508  568  0.1+  0.0     20021201  568  0.1+  0.3+    20040526  304  0.6-  0.0
20020525  644  0.1+  0.3+    20021201  568  0.3+  0.4-    20060127  291  0.0   0.1-
20020531  621  0.1-  0.4+    20021231  695  0.1-  0.3+    20060127  291  0.0   0.0
20020531  621  0.5-  0.2+    20021231  695  0.1+  0.5+    20060127  291  0.2+  0.1+
20020601  568  0.2-  0.7-    20030401  621  0.7+  0.2-    20070305  461  0.8+  0.3+
20020601  568  0.2-  0.7-    20030401  621  0.1+  0.4+    20070417  850  1.1-  0.4+
20020601  246  0.1-  0.3+    20030401  621  0.0   0.2+    20070420  850  0.1+  1.0-
20020601  246  1.2-  0.6+    20030407  621  0.4-  0.2+    20070420  850  0.5-  0.7+
20020601  246  0.6+  0.3+    20030407  621  0.2-  0.2+    20070426  461  0.5+  0.6-
20020601  246  0.3-  1.0+    20030407  621  0.2-  0.4+    20070426  461  0.0   0.0
20020601  246 (0.7-  1.7+)   20030408  621  0.0   0.9+    20070607  461  0.1-  0.3-
20020601  621  0.0   0.6+    20040220  621  0.0   0.1-    20070607  461  0.2-  0.2-
20020602  246  0.4+  0.9+    20040220  621  0.2-  0.7+
20020602  246  0.2-  0.4+    20040221  621  0.2-  0.2+


Revised elements and residuals from the Minor Planet Center (new astrometry is shown in red)

(95626) 2002 GZ32
Epoch 2009 June 18.0 TT = JDT 2455000.5                 MPC
M 327.13049              (2000.0)            P               Q
n   0.00888004     Peri.  155.22741     -0.11521870     +0.96206059             T = 2458702.00519 JDT
a  23.0954337      Node   107.36780     -0.94910115     -0.03314763             q =    17.9961033
e   0.2207939      Incl.   15.01831     -0.29314101     -0.27081478
P 111              H    6.8           G   0.15           U   2
From 68 observations at 9 oppositions, 1995-2007, mean residual 0".44.
  
Residuals
19950329  675  0.8-  0.1+    20020605  568  0.5+  0.8-    20070417  850  1.2-  0.7+
19960508  675  0.2+  0.6+    20020605  568  0.3+  0.7-    20070420  850  0.0   0.7-
20010324  608  0.9-  0.3+    20021130  568  0.2+  0.3-    20070420  850  0.6-  1.1+
20020401  644  0.0   0.2-    20021201  568  0.1+  0.3+    20070426  461  0.5+  0.3-
20020413  568  0.5+  0.4-    20021201  568  0.3+  0.4-    20070426  461  0.1-  0.3+
20020413  568  0.5+  0.4-    20021231  695  0.2-  0.3+    20070607  461  0.1-  0.0
20020413  568  0.4+  0.1-    20021231  695  0.0   0.5+    20070607  461  0.2-  0.1+
20020506  644  0.4-  0.5-    20030401  621  0.7+  0.3-    20071222  461  0.2+  0.2-
20020506  644  0.4-  0.4-    20030401  621  0.1+  0.4+    20071222  461  0.0   0.1-
20020506  644  0.3-  0.6-    20030401  621  0.0   0.2+    20080226  250  0.2+  0.1+
20020508  568  0.2-  0.7-    20030407  621  0.3-  0.1+    20080226  250  0.3+  0.0
20020508  568  0.2+  0.1-    20030407  621  0.2-  0.2+    20080226  250  0.1+  0.1+
20020525  644  0.2+  0.2+    20030407  621  0.2-  0.3+    20080226  250  0.3+  0.0
20020531  621  0.1-  0.3+    20030408  621  0.0   0.8+    20080312  291  0.2-  0.1-
20020531  621  0.4-  0.1+    20040220  621  0.1-  0.1-    20080312  291  0.1-  0.2-
20020601  568  0.2-  0.8-    20040220  621  0.2-  0.7+    20080312  291  0.1-  0.0
20020601  568  0.1-  0.8-    20040221  621  0.2-  0.3+    20080330  461  0.1+  0.0
20020601  246  0.1-  0.2+    20040221  621  0.5-  0.1-    20080330  461  0.1+  0.1+
20020601  246  1.1-  0.5+    20040224  621  0.1-  0.2-    20080330  461  0.1+  0.0
20020601  246  0.7+  0.2+    20040224  621  0.1+  0.1+    20090127  461  0.7+  0.4-
20020601  246  0.2-  0.9+    20040312  644  0.0   0.2+    20090402  G96  0.2-  0.3-
20020601  246 (0.6-  1.6+)   20040312  644  0.1-  0.4+    20090402  G96  0.2+  0.5-
20020601  621  0.1+  0.5+    20040312  644  0.1+  0.2+    20090402  G96  0.0   0.3-
20020602  246  0.5+  0.8+    20040419  850 (1.6+  2.0+)   20090402  G96  0.2-  0.7-
20020602  246  0.1-  0.3+    20040419  850 (0.1+  1.6+)   20090417  G68  0.1+  0.1+
20020602  246  0.4-  0.2-    20040526  304  0.5+  0.2-    20090418  461  0.3+  0.0
20020602  246  1.0+  0.5-    20040526  304  0.5-  0.0     20090418  461  0.3+  0.1+
20020605  568  0.6+  0.9-    20060127  291  0.1-  0.1+    20090418  461  0.2+  0.1-
20020605  568  0.4+  0.7-    20060127  291  0.1-  0.3+    20090418  G68  0.0   0.4+
20020605  568  0.5+  0.8-    20060127  291  0.1+  0.3+
20020605  568  0.4+  0.7-    20070305  461  0.6+  0.6+


DSS precovery images are from DSS plate archive scans, which are copyright California Institute of Technology.


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