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249861 (2001 QC131)
Classification: Main-belt Asteroid          SPK-ID: 2249861
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .21426561768644 4.1317e-08  
a 2.680415216783324 1.6425e-08 au
q 2.106094394703112 1.0677e-07 au
i 7.460559757357061 5.2779e-06 deg
node 191.4239156344504 4.5109e-05 deg
peri 159.7802578102313 5.0924e-05 deg
M 90.37316267324057 2.2311e-05 deg
tp 2458598.118023784300
(2019-Apr-24.61802378)
9.7139e-05 TDB
period 1602.881952481942
4.39
1.4733e-05
4.034e-08
d
yr
n .2245954541084994 2.0644e-09 deg/d
Q 3.254736038863536 1.9944e-08 au
  Orbit Determination Parameters
   # obs. used (total)      300  
   data-arc span      7212 days (19.75 yr)  
   first obs. used      2000-04-29  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50001  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:27:47  

Additional Information
 Earth MOID = 1.10266 au 
 Jupiter MOID = 2.20467 au 
 T_jup = 3.331 
[ 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 16.4   n/a MPO454853  
diameter diameter 3.029 km 0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249861 (2001 QC131)          Discovered 2001-Aug-20 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

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