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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1698890139401569 5.1323e-08  
a 2.377149384819548 1.1625e-08 au
q 1.973297819844104 1.2311e-07 au
i 10.74130603682294 5.9682e-06 deg
node 221.6739818226111 2.6566e-05 deg
peri 218.0000970632389 3.2585e-05 deg
M 241.9998282061577 2.2235e-05 deg
tp 2459039.296623912882
(2020-Jul-08.79662391)
8.4469e-05 TDB
period 1338.699615493957
3.67
9.82e-06
2.689e-08
d
yr
n .268917683872768 1.9726e-09 deg/d
Q 2.781000949794991 1.36e-08 au
  Orbit Determination Parameters
   # obs. used (total)      493  
   data-arc span      10553 days (28.89 yr)  
   first obs. used      1990-10-26  
   last obs. used      2019-09-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60217  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:56:13  

Additional Information
 Earth MOID = .999071 au 
 Jupiter MOID = 2.53059 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 15.6   n/a MPO449957  
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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