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39690 (1996 RJ26)
Classification: Main-belt Asteroid          SPK-ID: 2039690
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .1548026135471201 3.315e-08  
a 2.32350502639421 8.9389e-09 au
q 1.963820375718516 7.712e-08 au
i 3.884746960488477 4.1251e-06 deg
node 165.974198782931 5.6374e-05 deg
peri 148.1285021700869 5.7945e-05 deg
M 279.8153364197104 1.4433e-05 deg
tp 2459288.639409631781
(2021-Mar-15.13940963)
5.2601e-05 TDB
period 1293.641238060134
3.54
7.4653e-06
2.044e-08
d
yr
n .2782842641440792 1.6059e-09 deg/d
Q 2.683189677069904 1.0323e-08 au
  Orbit Determination Parameters
   # obs. used (total)      787  
   data-arc span      8539 days (23.38 yr)  
   first obs. used      1996-09-14  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55841  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:33:17  

Additional Information
 Earth MOID = .951354 au 
 Jupiter MOID = 2.58652 au 
 T_jup = 3.557 
[ 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 15.9   n/a MPO319563  
diameter diameter 1.440 km 0.344 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.282   0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39690 (1996 RJ26)          Discovered 1996-Sep-14 by JPL/GEODSS NEAT at Haleakala
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1996 RJ26 = 1999 JS118 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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