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249308 (2008 UQ77)
Classification: Main-belt Asteroid          SPK-ID: 2249308
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .07030033105708855 5.6903e-08  
a 2.411687246203425 2.3372e-08 au
q 2.242144834389166 1.4202e-07 au
i 11.75006097509079 6.4492e-06 deg
node 46.70917928041339 2.1751e-05 deg
peri 174.21548840 4.1191e-05 deg
M 127.476859072521 3.7994e-05 deg
tp 2458116.094840326032
(2017-Dec-28.59484033)
0.00014089 TDB
period 1367.980500550465
3.75
1.9886e-05
5.444e-08
d
yr
n .2631616458386202 3.8256e-09 deg/d
Q 2.581229658017683 2.5015e-08 au
  Orbit Determination Parameters
   # obs. used (total)      331  
   data-arc span      7484 days (20.49 yr)  
   first obs. used      1999-05-13  
   last obs. used      2019-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57459  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 18:47:24  

Additional Information
 Earth MOID = 1.23369 au 
 Jupiter MOID = 2.3917 au 
 T_jup = 3.487 
[ 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 16.4   n/a MPO348680  
diameter diameter 2.129 km 0.651 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.142   0.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249308 (2008 UQ77)          Discovered 2008-Oct-21 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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