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120795 (1998 FR54)
Classification: Main-belt Asteroid          SPK-ID: 2120795
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 .2675000596725561 5.4917e-08  
a 2.577472281512465 1.3845e-08 au
q 1.887998292403521 1.4821e-07 au
i 4.269727763307713 5.5105e-06 deg
node 184.5279461218368 7.4584e-05 deg
peri 285.4292169851514 7.6168e-05 deg
M 180.0787186493522 1.61e-05 deg
tp 2459755.886930910398
(2022-Jun-25.38693091)
7.1967e-05 TDB
period 1511.434851321239
4.14
1.2178e-05
3.334e-08
d
yr
n .2381842655575275 1.9191e-09 deg/d
Q 3.266946270621408 1.7548e-08 au
  Orbit Determination Parameters
   # obs. used (total)      553  
   data-arc span      8271 days (22.64 yr)  
   first obs. used      1996-09-13  
   last obs. used      2019-05-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59317  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:58:17  

Additional Information
 Earth MOID = .909937 au 
 Jupiter MOID = 1.89493 au 
 T_jup = 3.371 
[ 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 16.0   n/a MPO280593  
diameter diameter 1.639 km 0.336 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.315   0.221 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120795 (1998 FR54)          Discovered 1998-Mar-20 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1998 FR54 = 1996 SR3 = 1998 FW139 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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