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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1050484982846636 4.0011e-08  
a 2.591237309953284 1.3961e-08 au
q 2.3190317218435 1.0573e-07 au
i 13.65622871762984 4.7264e-06 deg
node 338.7811115325996 1.3293e-05 deg
peri 30.25255930817239 2.3296e-05 deg
M 213.1688110411325 1.9489e-05 deg
tp 2460017.905401434126
(2023-Mar-14.40540143)
8.4455e-05 TDB
period 1523.558762293705
4.17
1.2313e-05
3.371e-08
d
yr
n .2362888842291997 1.9096e-09 deg/d
Q 2.863442898063068 1.5428e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1207  
   data-arc span      8207 days (22.47 yr)  
   first obs. used      1998-12-12  
   last obs. used      2021-06-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4932  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:16:21  

Additional Information
 Earth MOID = 1.32397 au 
 Jupiter MOID = 2.59634 au 
 T_jup = 3.372 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.79   n/a MPO637231  

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
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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