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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06999484900814958 5.5286e-08  
a 2.412333754106657 2.3078e-08 au
q 2.243482817230699 1.3853e-07 au
i 11.74826704178139 6.2047e-06 deg
node 46.70917509092548 2.1265e-05 deg
peri 174.2703896807372 4.0923e-05 deg
M 232.6574406038357 3.8871e-05 deg
tp 2459484.589419825415
(2021-Sep-27.08941983)
0.00015172 TDB
period 1368.530615086717
3.75
1.9638e-05
5.377e-08
d
yr
n .2630558615432865 3.7748e-09 deg/d
Q 2.581184690982615 2.4693e-08 au
  Orbit Determination Parameters
   # obs. used (total)      347  
   data-arc span      7562 days (20.70 yr)  
   first obs. used      1999-05-13  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58105  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:21:40  

Additional Information
 Earth MOID = 1.23493 au 
 Jupiter MOID = 2.39099 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 16.3   n/a MPO503175  
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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