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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1298181797964466 3.8145e-08  
a 2.750874161927167 1.4913e-08 au
q 2.393760685376706 1.0449e-07 au
i 11.20683802687783 4.1082e-06 deg
node 211.0254426704993 2.3045e-05 deg
peri 82.59306580554453 2.8191e-05 deg
M 207.3702183352261 1.6946e-05 deg
tp 2459907.047388134506
(2022-Nov-23.54738813)		 8.0467e-05 TDB
period 1666.496911376546
4.56		 1.3551e-05
3.71e-08		 d
yr
n .2160220025266269 1.7566e-09 deg/d
Q 3.107987638477627 1.6849e-08 au
   Orbit Determination Parameters
   # obs. used (total)      886  
   data-arc span      8000 days (21.90 yr)  
   first obs. used      1999-04-17  
   last obs. used      2021-03-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49998  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:38:39  

Additional Information
 Earth MOID = 1.4082 au 
 Jupiter MOID = 2.11404 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 14.97   n/a E2021B55  

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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