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28958 (2001 CQ42)
Classification: Jupiter Trojan          SPK-ID: 2028958
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08385720149194388 4.815e-08  
a 5.295540912867303 1.2015e-07 au
q 4.851471671528157 3.4086e-07 au
i 8.229949019207078 5.3108e-06 deg
node 147.8013654341317 2.9076e-05 deg
peri 286.3411683548781 4.7624e-05 deg
M 316.8031539006859 4.0129e-05 deg
tp 2459930.588782805403
(2022-Dec-17.08878281)
0.00050168 TDB
period 4451.064815424053
12.19
0.00015149
4.148e-07
d
yr
n .08087952319914776 2.7526e-09 deg/d
Q 5.739610154206448 1.3023e-07 au
  Orbit Determination Parameters
   # obs. used (total)      961  
   data-arc span      9331 days (25.55 yr)  
   first obs. used      1995-07-24  
   last obs. used      2021-02-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47702  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 19:36:38  

Additional Information
 Earth MOID = 3.87809 au 
 Jupiter MOID = .199616 au 
 T_jup = 2.972 
[ 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 12.20   n/a E2021B10  
diameter diameter 21.577 km 0.652 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
geometric albedo albedo 0.066   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

28958 (2001 CQ42)          Discovered 2001-Feb-13 by LINEAR at Socorro
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2001 CQ42 = 1996 RG29 = 2000 CF10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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