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249967 (2001 UO121)
Classification: Main-belt Asteroid          SPK-ID: 2249967
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3296265361078285 4.502e-08  
a 2.769423383021147 9.4607e-09 au
q 1.856547946259862 1.2272e-07 au
i 11.12231162948453 4.1222e-06 deg
node 252.0501364701657 2.7528e-05 deg
peri 112.8208518280815 2.8621e-05 deg
M 327.9792073226398 5.3061e-06 deg
tp 2458750.231107516717
(2019-Sep-23.73110752)
2.4715e-05 TDB
period 1683.381147029796
4.61
8.626e-06
2.362e-08
d
yr
n .2138553117546753 1.0958e-09 deg/d
Q 3.682298819782431 1.2579e-08 au
  Orbit Determination Parameters
   # obs. used (total)      835  
   data-arc span      6620 days (18.12 yr)  
   first obs. used      2001-10-13  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49798  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 18:49:49  

Additional Information
 Earth MOID = .888159 au 
 Jupiter MOID = 1.98368 au 
 T_jup = 3.231 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO450109  
diameter diameter 5.560 km 0.117 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.051   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

249967 (2001 UO121)          Discovered 2001-Oct-22 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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