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245501 (2005 QC157)
Classification: Main-belt Asteroid          SPK-ID: 2245501
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2636899329732628 5.1795e-08  
a 3.083671256860299 3.3079e-08 au
q 2.27053818982723 1.7627e-07 au
i 13.1476398605198 7.6689e-06 deg
node 196.205528676419 2.1591e-05 deg
peri 115.5357755575421 2.8901e-05 deg
M 326.8057706825778 2.1542e-05 deg
tp 2459382.873034797352
(2021-Jun-17.37303480)
0.00012063 TDB
period 1977.882718686512
5.42
3.1825e-05
8.713e-08
d
yr
n .1820128143083588 2.9287e-09 deg/d
Q 3.896804323893368 4.1801e-08 au
  Orbit Determination Parameters
   # obs. used (total)      377  
   data-arc span      8114 days (22.21 yr)  
   first obs. used      1998-03-23  
   last obs. used      2020-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48222  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:43:48  

Additional Information
 Earth MOID = 1.29211 au 
 Jupiter MOID = 1.73721 au 
 T_jup = 3.134 
[ 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 15.58   n/a E2021B55  
diameter diameter 3.095 km 0.109 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.106   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

245501 (2005 QC157)          Discovered 2005-Aug-30 by NEAT at Palomar
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

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