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JPL Small-Body Database Browser
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39910 (1998 FJ37)
Classification: Main-belt Asteroid          SPK-ID: 2039910
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1363658112649559 6.91e-08  
a 2.621935307438537 1.4491e-08 au
q 2.264392972155449 1.7808e-07 au
i 15.07049919897915 5.7593e-06 deg
node 353.8792997835251 1.6117e-05 deg
peri 352.73917328 2.3433e-05 deg
M 169.2952050341299 2.078e-05 deg
tp 2457871.254863090251
(2017-Apr-27.75486309)
8.7199e-05 TDB
period 1550.712846442306
4.25
1.2855e-05
3.52e-08
d
yr
n .2321512979181949 1.9245e-09 deg/d
Q 2.979477642721624 1.6467e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1395  
   data-arc span      25339 days (69.37 yr)  
   first obs. used      1949-12-22  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46524  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:12:08  

Additional Information
 Earth MOID = 1.2579 au 
 Jupiter MOID = 2.44412 au 
 T_jup = 3.343 
[ 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 13.5   n/a MPO474256  
diameter diameter 5.696 km 1.457 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.922023 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.377   0.154 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39910 (1998 FJ37)          Discovered 1998-Mar-20 by LINEAR at Socorro
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 FJ37 = 1987 SB31 = 2000 QG151 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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