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66651 (1999 RQ252)
Classification: Main-belt Asteroid          SPK-ID: 2066651
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1023407905656517 4.2463e-08  
a 2.774561925868776 1.3542e-08 au
q 2.490611064902008 1.1613e-07 au
i 7.333431078844691 4.1185e-06 deg
node 275.5982957873109 3.4139e-05 deg
peri 215.958775446502 4.1612e-05 deg
M 92.85067282438436 2.1831e-05 deg
tp 2458765.115849926896
(2019-Oct-08.61584993)
0.00010211 TDB
period 1688.068478758024
4.62
1.2358e-05
3.383e-08
d
yr
n .2132614905912263 1.5613e-09 deg/d
Q 3.058512786835543 1.4928e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1465  
   data-arc span      7587 days (20.77 yr)  
   first obs. used      1999-09-08  
   last obs. used      2020-06-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50397  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:24:00  

Additional Information
 Earth MOID = 1.50978 au 
 Jupiter MOID = 2.02965 au 
 T_jup = 3.316 
[ 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 14.30   n/a E2021B10  
diameter diameter 8.133 km 0.092 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.060   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66651 (1999 RQ252)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RQ252 = 1999 VX195 = 2000 SM172 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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