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101797 (1999 HR3)
Classification: Inner Main-belt Asteroid          SPK-ID: 2101797
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09392331542064809 4.0837e-08  
a 1.898813449246386 7.2314e-09 au
q 1.720470594727849 7.4833e-08 au
i 22.29392961188755 6.3082e-06 deg
node 177.2109908789244 1.0202e-05 deg
peri 283.2669444703188 4.2714e-05 deg
M 111.3996546502946 4.5507e-05 deg
tp 2458704.764664052847
(2019-Aug-09.26466405)
0.00012001 TDB
period 955.700637270274
2.62
5.4595e-06
1.495e-08
d
yr
n .3766869937727072 2.1519e-09 deg/d
Q 2.077156303764923 7.9106e-09 au
  Orbit Determination Parameters
   # obs. used (total)      548  
   data-arc span      7791 days (21.33 yr)  
   first obs. used      1999-03-23  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5579  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:58:27  

Additional Information
 Earth MOID = .817287 au 
 Jupiter MOID = 3.03222 au 
 T_jup = 3.853 
[ 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 16.7   n/a MPO449616  

101797 (1999 HR3)          Discovered 1999-Apr-18 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 HR3 = 2000 SJ164 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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