(21767) = 0021767

ORIGIN  = 'H85 Silver Spring'
TELESCOP= '0.45-m f/7.25 Ritchey-Chretien + 3072x2054 CCD'
OBSERVER= 'K. Levin'
MEASURER= 'J. C. Pelle'

Former Status
98 observations from 1982 Jan. 1 to 2005 Sep. 14
Last observed on 2005 Sep. 14

2005-11-13T03:39:36.50 2005-11-13T03:57:48.25 2005-11-13T04:17:18.78


AirMass


Relative Extinction


Sky Background

Fig. 1 - From 2005-11-13T03:30:44.00 to 2005-11-13T04:27:31.00

21767         C2005 11 13.15250 04 14 38.41 +32 56 14.0          17.7 V      H85
21767         C2005 11 13.16514 04 14 37.72 +32 56 13.1                      H85
21767         C2005 11 13.17869 04 14 36.97 +32 56 12.1                      H85
Fig. 2 - Measures


Fig. 3 - Fit to Ephemerid with Offset removed
One vertical Tick = 1 arcsec
Sigma Fit (arcsec): RA=0.02 DC=0.02
Offset O-C (arcsec): RA=-0.32 DC=-0.51
Along Orbit and Transversal: LO=+0.43 TR=+0.51
Means Motion ("/h): RA=-28.84 DC=-3.02

New orbital Elements

Parameter Unit Value 
Ascending Node      (°)  319.80918
Inclination         (°)    7.61904
Semi-major Axis    (AU)    3.1481673
Eccentricity               0.1648894
Perihelia Argument  (°)   62.27550
Period             (yr)    5.59
Absolute Magnitude        13.8
Diameter Range     (km)    4.5-10.3

Follow-Up

Formerly Unidentified Observations of (21767)
20051103  704   +0.0 +0.3  
20051103  704   -0.2 +0.3  
20051103  704   +0.0 +0.3  
20051103  704   +0.0 +0.4  
20051113  H85   -0.1 +0.0  
20051113  H85   +0.0 +0.1  
20051113  H85   -0.1 +0.1  
20051121  703   -1.0 -0.4  
20051121  703   -0.3 -0.7  
20051121  703   +0.5 -0.3  
20051121  703   +1.4 -0.1  
20051201  644   -0.3 +0.1  
20051201  644   -0.2 +0.1  
20051201  644   -0.2 +0.2  
20051201  644   -0.2 +0.2  
20051201  644   -0.2 +0.2  
20051201  644   +0.0 +0.3  
20051204  703   -0.1 -0.1  
20051204  703   -0.4 -0.1  
20051204  703   -0.2 -0.2  


20051204  703   -0.1 -0.3  
20051207  A24   -0.3 +0.0  
20051207  A24   -0.1 +0.4  
20051208  A24   -0.1 +0.7  
20051209  A24   -0.6 +0.2  
20051209  A24   -0.2 +0.4  
20051210  A24   +0.2 -0.9  
20051210  703   -0.3 +0.3  
20051210  703   -0.3 +0.4  
20051210  703   +0.4 +0.5  
20051210  703   -0.4 +0.0  
20051223  644   -0.2 +0.2  
20051223  644   -0.2 +0.1  
20051223  644   -0.2 +0.0  
20051228  703   -0.4 +0.1  
20051228  703   -0.2 -0.1  
20051228  703   -0.2 +0.6  
20060106  704   -0.1 +0.9  
20060106  704   +0.3 +0.5  
20060106  704   +1.1 -0.3  


20060106  704   +1.3 +0.6  
20060106  704   +0.0 -0.3  
20060106  565   +1.0 +0.2  
20060106  565   +0.2 +0.1  
20060106  565   -1.0 +0.3  
20060213  644   +0.0 +0.0  
20060213  644   +0.0 +0.2  
20060213  644   +0.1 -0.1  
20060213  644   -0.2 -0.1  
20060213  644   -0.1 +0.1  
20060213  644   -0.1 +0.1  
20060220  704   +0.2 -0.3  
20060220  704   +0.6 -0.6  
20060220  704   +0.0 -0.5  
20060220  704   -0.3 -1.2  
20060220  704   +0.2 -0.7  
20060228  704   +0.9 +1.2  
20060228  704   -0.1 +0.9  
20060228  704   -0.2 -0.9  
20060228  704   +0.1 -1.7
Further observations? None needed at this time.

[MP Home Page]

Updated on 2006/03/30 08:45