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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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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0768319199451041 4.1803e-08  
a 3.004314278366367 1.7495e-08 au
q 2.773487044240989 1.314e-07 au
i 9.585292905378545 4.1301e-06 deg
node 3.461536447506652 2.2329e-05 deg
peri 114.5980219882323 4.5012e-05 deg
M 357.9897548373691 3.4667e-05 deg
tp 2459211.120940957281
(2020-Dec-27.62094096)
0.00018313 TDB
period 1902.026089005581
5.21
1.6614e-05
4.549e-08
d
yr
n .1892718517800224 1.6533e-09 deg/d
Q 3.235141512491745 1.8839e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1433  
   data-arc span      8186 days (22.41 yr)  
   first obs. used      1998-10-11  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46577  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:48:13  

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 13.99   n/a E2021B10  
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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