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70380 (1999 RQ212)
Classification: Main-belt Asteroid          SPK-ID: 2070380
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1077942068112599 3.5072e-08  
a 2.58438952859425 1.1567e-08 au
q 2.305807309268107 9.225e-08 au
i 12.2717182365412 2.9438e-06 deg
node 316.2988980468253 1.8325e-05 deg
peri 231.528969657692 2.7696e-05 deg
M 181.8188608618144 2.4232e-05 deg
tp 2459751.594559604996
(2022-Jun-21.09455960)
0.00010407 TDB
period 1517.523362829658
4.15
1.0188e-05
2.789e-08
d
yr
n .2372286376723217 1.5926e-09 deg/d
Q 2.862971747920392 1.2814e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1266  
   data-arc span      8154 days (22.32 yr)  
   first obs. used      1998-07-21  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49688  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:54:33  

Additional Information
 Earth MOID = 1.33056 au 
 Jupiter MOID = 2.1901 au 
 T_jup = 3.383 
[ 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 14.4   n/a MPO385262  
diameter diameter 5.345 km 0.156 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.195   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70380 (1999 RQ212)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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