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90555 (2004 FM131)
Classification: Main-belt Asteroid          SPK-ID: 2090555
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1106896949528514 3.6279e-08  
a 2.972971386789117 1.7722e-08 au
q 2.643894090881875 1.0839e-07 au
i 10.929925409605 4.6652e-06 deg
node 31.71606727406694 2.0612e-05 deg
peri 242.7411177057831 2.8485e-05 deg
M 4.140091974032142 1.9491e-05 deg
tp 2458978.967621295036
(2020-May-09.46762129)
0.00010136 TDB
period 1872.339161160628
5.13
1.6741e-05
4.583e-08
d
yr
n .1922728571125131 1.7192e-09 deg/d
Q 3.30204868269636 1.9683e-08 au
  Orbit Determination Parameters
   # obs. used (total)      861  
   data-arc span      7748 days (21.21 yr)  
   first obs. used      1999-05-13  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52803  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:13:20  

Additional Information
 Earth MOID = 1.65005 au 
 Jupiter MOID = 1.83766 au 
 T_jup = 3.225 
[ 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 14.7   n/a MPO432444  
diameter diameter 3.600 km 0.792 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.28 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:
[Chang, C.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) ArXiv:1901.08719.]
geometric albedo albedo 0.136   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

90555 (2004 FM131)          Discovered 2004-Mar-22 by LONEOS at Anderson Mesa
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 2004 FM131 = 1999 JC133 = 2000 QC250 = 2003 BA75 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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