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78626 (2002 TQ21)
Classification: Main-belt Asteroid          SPK-ID: 2078626
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2294672323863559 4.4932e-08  
a 2.30005253253335 1.0417e-08 au
q 1.772265843549693 1.0364e-07 au
i 2.423261934787396 4.9972e-06 deg
node 108.9746700737538 0.00012937 deg
peri 185.7533929999016 0.00012987 deg
M 136.4630101730674 1.4382e-05 deg
tp 2458717.532946018421
(2019-Aug-22.03294602)
4.9088e-05 TDB
period 1274.104529959162
3.49
8.6554e-06
2.37e-08
d
yr
n .2825513853337754 1.9195e-09 deg/d
Q 2.827839221517007 1.2807e-08 au
  Orbit Determination Parameters
   # obs. used (total)      399  
   data-arc span      9816 days (26.87 yr)  
   first obs. used      1994-03-05  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60048  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:37:43  

Additional Information
 Earth MOID = .754277 au 
 Jupiter MOID = 2.37704 au 
 T_jup = 3.555 
[ 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 16.5   n/a MPO474677  

78626 (2002 TQ21)          Discovered 2002-Oct-02 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2002 TQ21 = 1995 UK62 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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