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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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .267500031239491 4.7516e-08  
a 2.577472295234285 1.2617e-08 au
q 1.887998375740191 1.2792e-07 au
i 4.2697323707943 4.5667e-06 deg
node 184.5279894241604 6.803e-05 deg
peri 285.4291748304003 6.9134e-05 deg
M 180.0787136580268 1.4082e-05 deg
tp 2459755.886957898366
(2022-Jun-25.38695790)
6.3377e-05 TDB
period 1511.434863390992
4.14
1.1098e-05
3.038e-08
d
yr
n .238184263655477 1.7489e-09 deg/d
Q 3.266946214728379 1.5992e-08 au
  Orbit Determination Parameters
   # obs. used (total)      598  
   data-arc span      8688 days (23.79 yr)  
   first obs. used      1996-09-13  
   last obs. used      2020-06-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60104  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:54:42  

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 16.04   n/a E2021B55  
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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