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22821 (1999 RS33)
Classification: Main-belt Asteroid          SPK-ID: 2022821
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2008491979383973 4.062e-08  
a 2.255374286710603 7.5458e-09 au
q 1.802384170173894 9.2308e-08 au
i 4.918142733211737 4.0731e-06 deg
node 41.36022669686821 4.7685e-05 deg
peri 282.819654522539 4.8628e-05 deg
M 111.5756418331783 1.0576e-05 deg
tp 2458817.063671920311
(2019-Nov-29.56367192)
3.5724e-05 TDB
period 1237.161407640152
3.39
6.2087e-06
1.7e-08
d
yr
n .2909887083260131 1.4603e-09 deg/d
Q 2.708364403247312 9.0614e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1074  
   data-arc span      11488 days (31.45 yr)  
   first obs. used      1989-09-26  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54438  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:13:24  

Additional Information
 Earth MOID = .796464 au 
 Jupiter MOID = 2.63221 au 
 T_jup = 3.592 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.65   n/a E2021B10  

22821 (1999 RS33)          Discovered 1999-Sep-02 by Bell, G., Hug, G. at Eskridge
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 RS33 = 1989 SD2 = 1996 VG39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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