(61408) = 61408

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

Former Status
89 observations from 1996 Jan. 1 to 2005 Dec. 4
Last observed on 2005 Dec. 4

2005-12-24T23:21:34.00 2005-12-25T00:08:44.29


AirMass


Relative Extinction


Sky Background

Fig. 1 - From 2005-12-24T22:58:07.00 to 2005-12-25T00:32:17.00

61408         C2005 12 24.97331 03 07 01.17 +34 28 32.9          19.2 V      H85
61408         C2005 12 25.00607 03 07 00.32 +34 28 19.7                      H85
Fig. 2 - Measures


Fig. 3 - Fit to Ephemerid with Offset removed
One vertical Tick = 1 arcsec
Sigma Fit (arcsec): RA=0.23 DC=0.01
Offset O-C (arcsec): RA=-1.19 DC=+0.16
Along Orbit and Transversal: LO=+0.73 TR=-0.17
Means Motion ("/h): RA=-13.37 DC=-16.79

New orbital Elements

Parameter Unit Value 
Ascending Node      (°)  328.05325
Inclination         (°)   11.27986
Semi-major Axis    (AU)    2.5503461
Eccentricity               0.0244962
Perihelia Argument  (°)  256.96402
Period             (yr)    4.07
Absolute Magnitude        14.8
Diameter Range     (km)    2.9-6.5

Follow-Up

Formerly Unidentified Observations of (61408)
20051224  704   -0.2 +0.8  
20051224  704   -0.7 +1.0  
20051224  704   -0.2 +1.0  
20051224  704   -0.8 +0.5  
20051224  704   -0.6 +0.1  
20051224  H85   +0.0 +0.1  


20051225  H85   -0.8 +0.1  
20051229  644   +0.3 -0.1  
20051229  644   +0.2 +0.3  
20051229  644   +0.1 +0.2  
20060107  704   -0.3 +1.2  
20060107  704   -0.4 +0.7  


20060107  704   -0.5 +0.8  
20060107  704   -0.3 +1.5  
20060128  699   +0.2 -0.1  
20060128  699  (-2.5 +0.9) 
20060128  699   +0.0 +0.1  
20060128  699   -0.9 +1.2
Further observations? None needed at this time.

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Updated on 2006/04/18 07:40