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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09372162381813311 4.0844e-08  
a 1.899149180526664 7.2275e-09 au
q 1.721157835454829 7.4846e-08 au
i 22.29387110501636 6.308e-06 deg
node 177.2003718440126 1.0202e-05 deg
peri 283.3164754638828 4.2811e-05 deg
M 186.6907111767615 4.5811e-05 deg
tp 2459660.710355621057
(2022-Mar-22.21035562)
0.00012295 TDB
period 955.9541161844845
2.62
5.457e-06
1.494e-08
d
yr
n .3765871121899385 2.1497e-09 deg/d
Q 2.0771405255985 7.9048e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55787  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:38:38  

Additional Information
 Earth MOID = .81759 au 
 Jupiter MOID = 3.03093 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 16.74   n/a E2021B55  

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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