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120831 (1998 HN130)
Classification: Main-belt Asteroid          SPK-ID: 2120831
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1211361375527942 4.3305e-08  
a 2.712117499077848 1.5555e-08 au
q 2.383582060650214 1.1972e-07 au
i 12.91345164331281 6.4431e-06 deg
node 14.55135031022992 1.958e-05 deg
peri 117.3798451544522 4.226e-05 deg
M 29.2821077596712 3.2636e-05 deg
tp 2458867.803028283013
(2020-Jan-19.30302828)
0.00014792 TDB
period 1631.402705371775
4.47
1.4035e-05
3.843e-08
d
yr
n .2206689977984073 1.8984e-09 deg/d
Q 3.040652937505482 1.7439e-08 au
  Orbit Determination Parameters
   # obs. used (total)      556  
   data-arc span      8115 days (22.22 yr)  
   first obs. used      1998-03-20  
   last obs. used      2020-06-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55679  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:54:26  

Additional Information
 Earth MOID = 1.42676 au 
 Jupiter MOID = 2.03446 au 
 T_jup = 3.316 
[ 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 15.84   n/a E2021B55  

120831 (1998 HN130)          Discovered 1998-Apr-19 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

Alternate Designations
 1998 HN130 = 2000 SL342 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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