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JPL Small-Body Database Browser
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201225 (2002 QA101)
Classification: Main-belt Asteroid          SPK-ID: 2201225
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09655879250085045 4.0915e-08  
a 2.814321978918077 2.6817e-08 au
q 2.542574446925144 1.1487e-07 au
i 6.852328469367386 4.4666e-06 deg
node 272.9417707314059 4.6485e-05 deg
peri 335.803717142099 5.4948e-05 deg
M 261.4913859174273 3.0599e-05 deg
tp 2459072.379172020940
(2020-Aug-10.87917202)
0.00014812 TDB
period 1724.483726724072
4.72
2.4649e-05
6.749e-08
d
yr
n .2087581311560861 2.9839e-09 deg/d
Q 3.08606951091101 2.9407e-08 au
  Orbit Determination Parameters
   # obs. used (total)      340  
   data-arc span      6498 days (17.79 yr)  
   first obs. used      2001-04-26  
   last obs. used      2019-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 09:04:15  

Additional Information
 Earth MOID = 1.52992 au 
 Jupiter MOID = 1.96936 au 
 T_jup = 3.302 
[ 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 15.5   n/a MPO433319  
diameter diameter 3.055 km 0.542 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.109   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

201225 (2002 QA101)          Discovered 2002-Aug-26 by NEAT at Palomar
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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