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249362 (2008 YR137)
Classification: Main-belt Asteroid          SPK-ID: 2249362
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0613309395023216 6.2688e-08  
a 3.139798658561168 4.3189e-08 au
q 2.947231856983483 1.9807e-07 au
i 9.325451716699314 6.9494e-06 deg
node 280.4345765496228 3.5335e-05 deg
peri 359.3293096398562 6.1671e-05 deg
M 221.5100076372387 5.3867e-05 deg
tp 2459782.248428325320
(2022-Jul-21.74842833)
0.0003104 TDB
period 2032.128310469813
5.56
4.1929e-05
1.148e-07
d
yr
n .177154167945611 3.6552e-09 deg/d
Q 3.332365460138853 4.5838e-08 au
  Orbit Determination Parameters
   # obs. used (total)      203  
   data-arc span      4912 days (13.45 yr)  
   first obs. used      2006-08-22  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54239  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:22:18  

Additional Information
 Earth MOID = 1.93077 au 
 Jupiter MOID = 1.79708 au 
 T_jup = 3.187 
[ 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 15.4   n/a MPO422968  
diameter diameter 3.679 km 0.838 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.099   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249362 (2008 YR137)          Discovered 2008-Dec-30 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2008 YR137 = 2006 QU131 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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