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JPL Small-Body Database Browser
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390877 (2004 TH242)
Classification: Main-belt Asteroid          SPK-ID: 2390877
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1426072781327678 9.6529e-08  
a 2.383550741740908 2.3317e-08 au
q 2.043639058169898 2.2598e-07 au
i 2.841006676077923 1.0228e-05 deg
node 354.8216160052007 0.00015486 deg
peri 6.264469063950307 0.00015711 deg
M 1.659164229611124 2.7464e-05 deg
tp 2458594.305276809735
(2019-Apr-20.80527681)
0.00010251 TDB
period 1344.110672527101
3.68
1.9723e-05
5.4e-08
d
yr
n .2678350878080252 3.9302e-09 deg/d
Q 2.723462425311919 2.6643e-08 au
  Orbit Determination Parameters
   # obs. used (total)      153  
   data-arc span      7000 days (19.16 yr)  
   first obs. used      2000-07-29  
   last obs. used      2019-09-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64811  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 13:00:02  

Additional Information
 Earth MOID = 1.03964 au 
 Jupiter MOID = 2.71967 au 
 T_jup = 3.521 
[ 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 17.4   n/a MPO494982  

390877 (2004 TH242)          Discovered 2004-Oct-13 by Cernis, K., Zdanavicius, J. at Moletai
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2004 TH242 = 2000 OF66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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