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JPL Small-Body Database Browser
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85622 (1998 HP122)
Classification: Main-belt Asteroid          SPK-ID: 2085622
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1862447653525393 5.3416e-08  
a 2.239837302892615 1.2409e-08 au
q 1.822679329987515 1.2061e-07 au
i 7.94912788549643 6.1348e-06 deg
node 124.9981912355208 5.8461e-05 deg
peri 176.4429973136919 6.3685e-05 deg
M 33.30644297388094 2.973e-05 deg
tp 2458487.221134776377
(2019-Jan-03.72113478)
0.00010056 TDB
period 1224.399480679589
3.35
1.0175e-05
2.786e-08
d
yr
n .2940216862883559 2.4434e-09 deg/d
Q 2.656995275797714 1.472e-08 au
  Orbit Determination Parameters
   # obs. used (total)      383  
   data-arc span      9417 days (25.78 yr)  
   first obs. used      1994-01-18  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63536  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:13:10  

Additional Information
 Earth MOID = .80655 au 
 Jupiter MOID = 2.57028 au 
 T_jup = 3.600 
[ 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 16.1   n/a MPO449531  

85622 (1998 HP122)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 HP122 = 2002 VO90 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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