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91074 (1998 FT90)
Classification: Main-belt Asteroid          SPK-ID: 2091074
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 .08712856135091079 7.0854e-08  
a 2.581038239154969 1.6833e-08 au
q 2.356156090585708 1.7357e-07 au
i 13.58918658692196 5.4336e-06 deg
node 13.07547629094072 1.5602e-05 deg
peri 177.4703373170519 2.647e-05 deg
M 113.4091065115392 2.1608e-05 deg
tp 2458523.371330263754
(2019-Feb-08.87133026)
9.0039e-05 TDB
period 1514.572562897068
4.15
1.4817e-05
4.057e-08
d
yr
n .2376908236812329 2.3253e-09 deg/d
Q 2.805920387724229 1.83e-08 au
  Orbit Determination Parameters
   # obs. used (total)      643  
   data-arc span      8271 days (22.64 yr)  
   first obs. used      1998-02-27  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56002  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:41:17  

Additional Information
 Earth MOID = 1.35616 au 
 Jupiter MOID = 2.14939 au 
 T_jup = 3.380 
[ 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 15.2   n/a MPO474789  
diameter diameter 2.369 km 0.467 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.287   0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91074 (1998 FT90)          Discovered 1998-Mar-24 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1998 FT90 = 2000 RF78 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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