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91055 (1998 FD49)
Classification: Main-belt Asteroid          SPK-ID: 2091055
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1280311315270791 3.9505e-08  
a 2.566880492155871 1.0642e-08 au
q 2.238239878250369 1.0273e-07 au
i 13.35798140995886 4.9888e-06 deg
node 357.1903361930109 1.8797e-05 deg
peri 88.6982989578285 2.7858e-05 deg
M 225.5451515208891 2.0158e-05 deg
tp 2459561.523260518705
(2021-Dec-13.02326052)
8.4527e-05 TDB
period 1502.127859807985
4.11
9.3414e-06
2.558e-08
d
yr
n .2396600247105586 1.4904e-09 deg/d
Q 2.895521106061373 1.2004e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1683  
   data-arc span      8194 days (22.43 yr)  
   first obs. used      1998-02-23  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47289  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:15:00  

Additional Information
 Earth MOID = 1.301 au 
 Jupiter MOID = 2.35729 au 
 T_jup = 3.383 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0   n/a MPO302516  
diameter diameter 3.972 km 0.283 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.338   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91055 (1998 FD49)          Discovered 1998-Mar-20 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1998 FD49 = 2000 OT20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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