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249882 (2001 QP271)
Classification: Main-belt Asteroid          SPK-ID: 2249882
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1504672750006013 7.9082e-08  
a 2.719500706276401 1.8231e-08 au
q 2.31030484564078 2.1307e-07 au
i 11.19376511176164 9.0066e-06 deg
node 346.2029646761038 2.5202e-05 deg
peri 347.8499271459406 3.3306e-05 deg
M 58.50609165541152 1.8424e-05 deg
tp 2458734.286069737902
(2019-Sep-07.78606974)
8.363e-05 TDB
period 1638.06899730741
4.48
1.6472e-05
4.51e-08
d
yr
n .2197709623903225 2.21e-09 deg/d
Q 3.128696566912021 2.0974e-08 au
  Orbit Determination Parameters
   # obs. used (total)      271  
   data-arc span      6697 days (18.34 yr)  
   first obs. used      2001-07-16  
   last obs. used      2019-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55277  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 16:46:02  

Additional Information
 Earth MOID = 1.30206 au 
 Jupiter MOID = 2.25948 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 16.1   n/a MPO396804  
diameter diameter 3.844 km 0.169 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.043   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249882 (2001 QP271)          Discovered 2001-Aug-19 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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