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65965 (1998 HR7)
Classification: Main-belt Asteroid          SPK-ID: 2065965
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3368506274276085 3.8368e-08  
a 2.751113263193222 1.5948e-08 au
q 1.824399034362169 1.0542e-07 au
i 29.89191854361371 6.6752e-06 deg
node 209.0192598667312 9.6394e-06 deg
peri 73.05543253394463 1.4332e-05 deg
M 275.0176288147576 1.2959e-05 deg
tp 2459393.948122019589
(2021-Jun-28.44812202)
6.2489e-05 TDB
period 1666.71418967948
4.56
1.4493e-05
3.968e-08
d
yr
n .2159938411931505 1.8782e-09 deg/d
Q 3.677827492024274 2.132e-08 au
  Orbit Determination Parameters
   # obs. used (total)      999  
   data-arc span      7970 days (21.82 yr)  
   first obs. used      1998-03-31  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51699  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:49:05  

Additional Information
 Earth MOID = .996316 au 
 Jupiter MOID = 2.00913 au 
 T_jup = 3.078 
[ 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 13.9   n/a MPO366007  
diameter diameter 6.670 km 0.300 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.144   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

65965 (1998 HR7)          Discovered 1998-Apr-23 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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