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70212 (1999 RA38)
Classification: Main-belt Asteroid          SPK-ID: 2070212
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1441170102278029 3.8658e-08  
a 2.407534118968384 7.5076e-09 au
q 2.060567499721233 9.3586e-08 au
i 3.107727509628184 4.8776e-06 deg
node 38.75941968733252 5.4614e-05 deg
peri 30.51767765024206 5.6976e-05 deg
M 200.3246611115662 1.5907e-05 deg
tp 2459805.690982765254
(2022-Aug-14.19098277)
6.1624e-05 TDB
period 1364.448356973381
3.74
6.3823e-06
1.747e-08
d
yr
n .263842891641976 1.2341e-09 deg/d
Q 2.754500738215535 8.5896e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1697  
   data-arc span      13059 days (35.75 yr)  
   first obs. used      1984-09-21  
   last obs. used      2020-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50206  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:48:11  

Additional Information
 Earth MOID = 1.07486 au 
 Jupiter MOID = 2.51741 au 
 T_jup = 3.506 
[ 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 14.85   n/a E2021B10  
diameter diameter 5.871 km 0.168 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.074   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70212 (1999 RA38)          Discovered 1999-Sep-12 by Korlevic, K. at Visnjan
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RA38 = 1984 SJ8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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