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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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1298467565026824 4.0512e-08  
a 2.750823193371024 1.6099e-08 au
q 2.393637723999445 1.0934e-07 au
i 11.20701219024847 4.6882e-06 deg
node 211.0367169934703 2.334e-05 deg
peri 82.52464561964871 3.0091e-05 deg
M 164.2394618576636 1.8122e-05 deg
tp 2458240.230696954221
(2018-May-01.73069695)		 8.3353e-05 TDB
period 1666.450595982084
4.56		 1.4629e-05
4.005e-08		 d
yr
n .216028006391538 1.8964e-09 deg/d
Q 3.108008662742602 1.8189e-08 au
   Orbit Determination Parameters
   # obs. used (total)      777  
   data-arc span      7884 days (21.59 yr)  
   first obs. used      1999-04-17  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51406  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:29:39  

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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