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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07683192019294836 4.1802e-08  
a 3.004314277996115 1.7488e-08 au
q 2.773487043154582 1.3139e-07 au
i 9.58529293519134 4.1271e-06 deg
node 3.461536580890825 2.2321e-05 deg
peri 114.5980213490647 4.5003e-05 deg
M 357.9897554488878 3.466e-05 deg
tp 2459211.120937724417
(2020-Dec-27.62093772)
0.00018309 TDB
period 1902.026088653973
5.21
1.6608e-05
4.547e-08
d
yr
n .1892718518150112 1.6526e-09 deg/d
Q 3.235141512837648 1.8832e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1441  
   data-arc span      8196 days (22.44 yr)  
   first obs. used      1998-10-11  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46546  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 07:10:37  

Additional Information
 Earth MOID = 1.80572 au 
 Jupiter MOID = 1.83093 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 14.01   n/a MPCxxxxx  
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

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