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43803 (1991 RH2)
Classification: Main-belt Asteroid          SPK-ID: 2043803
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08971713886380495 4.2039e-08  
a 3.034934797300589 1.7815e-08 au
q 2.762649130648578 1.2725e-07 au
i 10.71205244658941 4.9318e-06 deg
node 354.6331731672733 1.9516e-05 deg
peri 27.46654756856474 3.0357e-05 deg
M 124.1793169130488 2.3544e-05 deg
tp 2458334.354282425233
(2018-Aug-03.85428243)
0.00012555 TDB
period 1931.178752536016
5.29
1.7004e-05
4.655e-08
d
yr
n .1864146441789759 1.6414e-09 deg/d
Q 3.307220463952599 1.9414e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1420  
   data-arc span      10408 days (28.50 yr)  
   first obs. used      1991-08-08  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52155  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 07:33:09  

Additional Information
 Earth MOID = 1.76894 au 
 Jupiter MOID = 2.16973 au 
 T_jup = 3.209 
[ 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 13.6   n/a MPO417120  
diameter diameter 6.555 km 0.384 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.179   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

43803 (1991 RH2)          Discovered 1991-Sep-07 by Seki, T. at Geisei
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 RH2 = 1999 CN41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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