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487366 (2014 QR251)
Classification: Main-belt Asteroid          SPK-ID: 2487366
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 .2093937646820653 7.9693e-08  
a 2.396607952375249 4.2262e-08 au
q 1.894773190760419 1.9971e-07 au
i 11.15992074383074 6.3527e-06 deg
node 121.4731413082492 4.5227e-05 deg
peri 114.0032502311799 4.7715e-05 deg
M 292.0076511569014 1.5589e-05 deg
tp 2459256.447837537767
(2021-Feb-10.94783754)
6.0886e-05 TDB
period 1355.170443165956
3.71
3.5846e-05
9.814e-08
d
yr
n .2656492412563001 7.0267e-09 deg/d
Q 2.898442713990078 5.1112e-08 au
  Orbit Determination Parameters
   # obs. used (total)      118  
   data-arc span      4027 days (11.03 yr)  
   first obs. used      2009-01-15  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60609  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 15:26:57  

Additional Information
 Earth MOID = .913993 au 
 Jupiter MOID = 2.19952 au 
 T_jup = 3.473 
[ 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 17.6   n/a MPO413572  
diameter diameter 1.957 km 0.643 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.067   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

487366 (2014 QR251)          Discovered 2009-Jan-15 by Spacewatch at Kitt Peak
Reference: Last Updated: 2017-03-14

Alternate Designations
 2014 QR251 = 2010 JT95 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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