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JPL Small-Body Database Browser
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39762 (1997 FE1)
Classification: Main-belt Asteroid          SPK-ID: 2039762
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03139994088454928 4.9383e-08  
a 2.721887217907231 1.4795e-08 au
q 2.636420120170533 1.3389e-07 au
i 5.427106407830608 5.9011e-06 deg
node 28.84579857571988 4.6373e-05 deg
peri 25.63289199375792 9.6825e-05 deg
M 187.136662548044 8.3994e-05 deg
tp 2459788.096919675502
(2022-Jul-27.59691968)
0.00038275 TDB
period 1640.225713922616
4.49
1.3373e-05
3.661e-08
d
yr
n .2194819877192734 1.7895e-09 deg/d
Q 2.807354315643928 1.5259e-08 au
  Orbit Determination Parameters
   # obs. used (total)      997  
   data-arc span      8340 days (22.83 yr)  
   first obs. used      1997-03-29  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5543  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:35:16  

Additional Information
 Earth MOID = 1.6475 au 
 Jupiter MOID = 2.29111 au 
 T_jup = 3.351 
[ 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 14.5   n/a MPO337580  
diameter diameter 6.578 km 0.113 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.90702 h n/a LCDB (Rev. 2019-August); 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 0.078   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39762 (1997 FE1)          Discovered 1997-Mar-29 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 FE1 = 1999 VV89 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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