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90479 Donalek (2004 CC109)
Classification: Main-belt Asteroid          SPK-ID: 2090479
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1046563097647853 5.2202e-08  
a 2.592109387445059 1.5362e-08 au
q 2.320828784448401 1.3354e-07 au
i 13.65442971464881 5.6322e-06 deg
node 338.7797500145717 1.5035e-05 deg
peri 30.2533421841954 3.2272e-05 deg
M 119.6333557703518 2.5777e-05 deg
tp 2458493.943143068208
(2019-Jan-10.44314307)
0.00010942 TDB
period 1524.327954533887
4.17
1.355e-05
3.71e-08
d
yr
n .2361696503231036 2.0994e-09 deg/d
Q 2.863389990441717 1.6969e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1075  
   data-arc span      7723 days (21.14 yr)  
   first obs. used      1998-12-12  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49454  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:12:08  

Additional Information
 Earth MOID = 1.32658 au 
 Jupiter MOID = 2.59547 au 
 T_jup = 3.372 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO502687  

90479 Donalek           Discovered 2004 Feb. 15 by the Catalina Sky Survey.
Ciro Donalek (b. 1973) is a computational scientist who has applied machine learning to the analysis of massive data sets and sky surveys, including the Palomar-Quest and Catalina Real-Time Transient surveys. He has contributed to the automated classification of astronomical sources and transient events.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-07-12Last Updated: 2014-08-13

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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