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90561 (2004 FQ143)
Classification: Main-belt Asteroid          SPK-ID: 2090561
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1347730385641213 4.6038e-08  
a 2.34527410315222 1.1355e-08 au
q 2.029194386004651 1.0958e-07 au
i 6.719410496788466 5.5209e-06 deg
node 187.0399558427805 3.3766e-05 deg
peri 157.2762972492195 3.8872e-05 deg
M 49.80036108718066 2.1519e-05 deg
tp 2458819.024153911084
(2019-Dec-01.52415391)
7.7582e-05 TDB
period 1311.864074190956
3.59
9.5275e-06
2.608e-08
d
yr
n .2744186742227976 1.993e-09 deg/d
Q 2.661353820299789 1.2885e-08 au
  Orbit Determination Parameters
   # obs. used (total)      675  
   data-arc span      9137 days (25.02 yr)  
   first obs. used      1993-03-19  
   last obs. used      2018-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56268  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Apr-05 14:45:17  

Additional Information
 Earth MOID = 1.02399 au 
 Jupiter MOID = 2.74869 au 
 T_jup = 3.540 
[ 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 15.8   n/a MPO493506  

90561 (2004 FQ143)          Discovered 2004-Mar-28 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 2004 FQ143 = 1993 FK48 = 2000 EN189 = 2001 MW26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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