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JPL Small-Body Database Browser
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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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1548026115505172 3.1049e-08  
a 2.323505025763359 8.3124e-09 au
q 1.963820379824439 7.3222e-08 au
i 3.88474766595639 4.0231e-06 deg
node 165.974182374645 5.3741e-05 deg
peri 148.1285187689842 5.5405e-05 deg
M 279.8153366520962 1.4407e-05 deg
tp 2459288.639408679366
(2021-Mar-15.13940868)
5.247e-05 TDB
period 1293.641237533282
3.54
6.9421e-06
1.901e-08
d
yr
n .278284264257414 1.4934e-09 deg/d
Q 2.683189671702279 9.5992e-09 au
  Orbit Determination Parameters
   # obs. used (total)      881  
   data-arc span      8626 days (23.62 yr)  
   first obs. used      1996-09-14  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55624  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:45:20  

Additional Information
 Earth MOID = .951354 au 
 Jupiter MOID = 2.58652 au 
 T_jup = 3.557 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456806.5 (2014-May-29.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1553327009940793 3.1128e-08  
q 1.962692504002416 7.3471e-08 au
tp 2456699.104961909989
(2014-Feb-10.60496191)
4.7187e-05 TDB
node 166.0004198611699 5.3778e-05 deg
peri 147.7265473785017 5.5413e-05 deg
i 3.88236859363688 4.0219e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      881  
   data-arc span      8626 days (23.62 yr)  
   first obs. used      1996-09-14  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55624  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:45:20  

Additional Information
 Jupiter MOID = 2.58652 au 
 T_jup = 3.557 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.68973389949337E-16 -2.276582006265215E-15 1.653062236283717E-13 -6.328042734144033E-15 6.159947603661961E-14 -5.197258210992468E-16
q -2.276582006265215E-15 5.398006663731069E-15 -3.085388389769084E-13 1.45103614010778E-14 -1.231431798406108E-13 1.261780942518568E-15
tp 1.653062236283717E-13 -3.085388389769084E-13 2.22660441875596E-9 -4.95026991818625E-12 6.415803110106744E-10 -4.704407305843559E-13
node -6.328042734144033E-15 1.45103614010778E-14 -4.95026991818625E-12 2.892117968690255E-9 -2.88662349489928E-9 4.612447090610699E-11
peri 6.159947603661961E-14 -1.231431798406108E-13 6.415803110106744E-10 -2.88662349489928E-9 3.070646190839271E-9 -4.61469251771959E-11
i -5.197258210992468E-16 1.261780942518568E-15 -4.704407305843559E-13 4.612447090610699E-11 -4.61469251771959E-11 1.617562466549978E-11

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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