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193861 (2001 QD137)
Classification: Main-belt Asteroid          SPK-ID: 2193861
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1701201564379126 4.6065e-08  
a 2.377247528061999 1.0703e-08 au
q 1.972829806696451 1.1241e-07 au
i 10.74090658791242 5.0644e-06 deg
node 221.6718713607794 2.4882e-05 deg
peri 218.0048293853972 3.1252e-05 deg
M 349.5848346474355 2.2295e-05 deg
tp 2459039.232337017254
(2020-Jul-08.73233702)
8.3061e-05 TDB
period 1338.782520891815
3.67
9.0415e-06
2.475e-08
d
yr
n .2689010308860248 1.816e-09 deg/d
Q 2.781665249427547 1.2524e-08 au
  Orbit Determination Parameters
   # obs. used (total)      554  
   data-arc span      10682 days (29.25 yr)  
   first obs. used      1990-10-26  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57828  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 22:10:30  

Additional Information
 Earth MOID = .998802 au 
 Jupiter MOID = 2.52978 au 
 T_jup = 3.498 
[ 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 15.7   n/a MPO494073  
diameter diameter 2.274 km 0.619 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.236   0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

193861 (2001 QD137)          Discovered 2001-Aug-22 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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