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91042 (1998 FF15)
Classification: Main-belt Asteroid          SPK-ID: 2091042
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1125569147727577 3.8696e-08  
a 2.62368686573401 1.5387e-08 au
q 2.328372766797183 1.04e-07 au
i 9.509728241288421 5.0487e-06 deg
node 15.93937752523364 2.9765e-05 deg
peri 232.8261484705443 3.9717e-05 deg
M 10.21425928040056 2.8654e-05 deg
tp 2458956.457617357092
(2020-Apr-16.95761736)
0.00012347 TDB
period 1552.267013807871
4.25
1.3655e-05
3.739e-08
d
yr
n .2319188624107156 2.0402e-09 deg/d
Q 2.919000964670837 1.7119e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1000  
   data-arc span      10521 days (28.80 yr)  
   first obs. used      1991-10-01  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53504  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:15:00  

Additional Information
 Earth MOID = 1.32976 au 
 Jupiter MOID = 2.13061 au 
 T_jup = 3.375 
[ 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 14.5   n/a MPO432448  
diameter diameter 5.441 km 0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.114   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91042 (1998 FF15)          Discovered 1998-Mar-26 by Klet at Klet
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1998 FF15 = 2000 UZ101 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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