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50816 (2000 FU31)
Classification: Main-belt Asteroid          SPK-ID: 2050816
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1965523290453841 3.3053e-08  
a 2.586734805819432 1.0445e-08 au
q 2.078306055112864 8.6879e-08 au
i 14.1079871378219 3.349e-06 deg
node 53.39577082177075 1.4452e-05 deg
peri 300.8968418000656 1.6467e-05 deg
M 132.1708225212475 9.1409e-06 deg
tp 2458442.596123613527
(2018-Nov-20.09612361)
3.708e-05 TDB
period 1519.589510512751
4.16
9.2041e-06
2.52e-08
d
yr
n .2369060838532151 1.4349e-09 deg/d
Q 3.095163556526001 1.2498e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2526  
   data-arc span      14066 days (38.51 yr)  
   first obs. used      1981-10-24  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4214  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 10:04:21  

Additional Information
 Earth MOID = 1.11409 au 
 Jupiter MOID = 2.46795 au 
 T_jup = 3.352 
[ 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 14.1   n/a MPO302346  
diameter diameter 4.297 km 0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 67.937 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 0.228   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

50816 (2000 FU31)          Discovered 2000-Mar-29 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 FU31 = 1981 UP22 = 1998 XW47 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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