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249590 (1996 UG2)
Classification: Main-belt Asteroid          SPK-ID: 2249590
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 .1909099827769574 5.1669e-08  
a 2.802866739942893 1.5489e-08 au
q 2.267771498894288 1.4697e-07 au
i 9.297960341919779 5.9047e-06 deg
node 217.8427146793405 3.0311e-05 deg
peri 180.58909294724 3.3733e-05 deg
M 349.5902622934594 1.4357e-05 deg
tp 2459050.060923237573
(2020-Jul-19.56092324)
6.853e-05 TDB
period 1713.965603025326
4.69
1.4208e-05
3.89e-08
d
yr
n .2100392209531876 1.7411e-09 deg/d
Q 3.337961980991497 1.8447e-08 au
  Orbit Determination Parameters
   # obs. used (total)      470  
   data-arc span      8354 days (22.87 yr)  
   first obs. used      1996-10-17  
   last obs. used      2019-09-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55066  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:18:52  

Additional Information
 Earth MOID = 1.27543 au 
 Jupiter MOID = 2.0845 au 
 T_jup = 3.278 
[ 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 15.9   n/a MPO450108  
diameter diameter 3.713 km 0.186 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.45 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2016) Minor Planet Bull. 43, 137-140.]
geometric albedo albedo 0.074   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249590 (1996 UG2)          Discovered 1996-Oct-17 by Spacewatch at Kitt Peak
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

Alternate Designations
 1996 UG2 = 2001 TP77 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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