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85958 (1999 FU42)
Classification: Main-belt Asteroid          SPK-ID: 2085958
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1419209387398983 3.4175e-08  
a 2.262330785694108 7.6686e-09 au
q 1.941258676848229 7.7732e-08 au
i 4.615856137422099 4.4689e-06 deg
node 358.952709932744 4.545e-05 deg
peri 43.90430916610354 4.8233e-05 deg
M 194.7448971359489 1.6838e-05 deg
tp 2459571.038509260703
(2021-Dec-22.53850926)
5.9559e-05 TDB
period 1242.889688573324
3.40
6.3195e-06
1.73e-08
d
yr
n .2896475876416943 1.4727e-09 deg/d
Q 2.583402894539987 8.7569e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1344  
   data-arc span      10350 days (28.34 yr)  
   first obs. used      1992-02-09  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54161  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:18:42  

Additional Information
 Earth MOID = .952541 au 
 Jupiter MOID = 2.80795 au 
 T_jup = 3.601 
[ 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 15.0   n/a MPO359342  
rotation period rot_per 9.87 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

85958 (1999 FU42)          Discovered 1999-Mar-20 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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