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101799 (1999 HE5)
Classification: Main-belt Asteroid          SPK-ID: 2101799
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1298467562925315 4.0555e-08  
a 2.750823193252617 1.6125e-08 au
q 2.393637724474501 1.0942e-07 au
i 11.20701221204515 4.6992e-06 deg
node 211.0367170062881 2.3341e-05 deg
peri 82.5246457890311 3.0133e-05 deg
M 164.2394617302836 1.8156e-05 deg
tp 2458240.230697592955
(2018-May-01.73069759)
8.3533e-05 TDB
period 1666.450595874488
4.56
1.4652e-05
4.011e-08
d
yr
n .2160280064054861 1.8995e-09 deg/d
Q 3.108008662030732 1.8218e-08 au
  Orbit Determination Parameters
   # obs. used (total)      773  
   data-arc span      7859 days (21.52 yr)  
   first obs. used      1999-04-17  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51439  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:58:26  

Additional Information
 Earth MOID = 1.40991 au 
 Jupiter MOID = 2.11472 au 
 T_jup = 3.306 
[ 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 14.9   n/a MPO449616  

101799 (1999 HE5)          Discovered 1999-Apr-17 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 HE5 = 2000 RS20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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