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70216 (1999 RH42)
Classification: Main-belt Asteroid          SPK-ID: 2070216
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.


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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 .07673671869250144 4.2093e-08  
a 3.003818381717207 2.0382e-08 au
q 2.773315215556009 1.3354e-07 au
i 9.585333163133123 5.4871e-06 deg
node 3.468947496740316 2.3132e-05 deg
peri 114.7129719012191 4.7593e-05 deg
M 320.02072502818 3.8604e-05 deg
tp 2459211.674437430623
(2020-Dec-28.17443743)
0.00020379 TDB
period 1901.555181493662
5.21
1.9354e-05
5.299e-08
d
yr
n .1893187236971066 1.9269e-09 deg/d
Q 3.234321547878406 2.1946e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1206  
   data-arc span      8053 days (22.05 yr)  
   first obs. used      1998-10-11  
   last obs. used      2020-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49073  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:01:37  

Additional Information
 Earth MOID = 1.80558 au 
 Jupiter MOID = 1.83206 au 
 T_jup = 3.226 
[ 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 13.9   n/a MPO453105  
diameter diameter 7.055 km 0.164 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.129   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70216 (1999 RH42)          Discovered 1999-Sep-14 by Kusnirak, P., Pravec, P. at Ondrejov
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 RH42 = 1998 TR31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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