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91289 (1999 FN22)
Classification: Main-belt Asteroid          SPK-ID: 2091289
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09110648408148846 3.7398e-08  
a 2.319709159267676 8.5043e-09 au
q 2.108368613675172 8.6695e-08 au
i 7.135538476099542 4.5664e-06 deg
node 315.6822758850565 2.7753e-05 deg
peri 148.5747350613425 3.8988e-05 deg
M 52.311441360025 2.5163e-05 deg
tp 2458812.982018913093
(2019-Nov-25.48201891)
9.0157e-05 TDB
period 1290.472436549479
3.53
7.0965e-06
1.943e-08
d
yr
n .2789676011698347 1.5341e-09 deg/d
Q 2.531049704860179 9.2791e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1172  
   data-arc span      7738 days (21.19 yr)  
   first obs. used      1999-02-18  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50925  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:39:02  

Additional Information
 Earth MOID = 1.12858 au 
 Jupiter MOID = 2.5607 au 
 T_jup = 3.563 
[ 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 15.3   n/a MPO351485  
diameter diameter 2.287 km 0.350 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.308   0.135 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91289 (1999 FN22)          Discovered 1999-Mar-19 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 FN22 = 2001 TW20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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