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JPL Small-Body Database Browser
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48871 (1998 HR97)
Classification: Main-belt Asteroid          SPK-ID: 2048871
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1250691062713664 4.5736e-08  
a 2.219028545469661 9.8857e-09 au
q 1.94149662849712 1.0046e-07 au
i 1.815711280044447 6.3228e-06 deg
node 328.8573129082637 0.00013072 deg
peri 310.9052613051683 0.00013303 deg
M 77.64764694036343 2.3249e-05 deg
tp 2458340.083463305051
(2018-Aug-09.58346331)
7.7965e-05 TDB
period 1207.376616089674
3.31
8.0682e-06
2.209e-08
d
yr
n .2981671130636358 1.9925e-09 deg/d
Q 2.496560462442201 1.1122e-08 au
  Orbit Determination Parameters
   # obs. used (total)      714  
   data-arc span      7391 days (20.24 yr)  
   first obs. used      1998-04-21  
   last obs. used      2018-07-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5486  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:48:16  

Additional Information
 Earth MOID = .925079 au 
 Jupiter MOID = 2.61158 au 
 T_jup = 3.640 
[ 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 15.8   n/a MPO347859  

48871 (1998 HR97)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 HR97 = 1999 VQ161 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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