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305891 (2009 FW22)
Classification: Main-belt Asteroid          SPK-ID: 2305891
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1493144457615024 7.5621e-08  
a 2.668505376065673 2.7461e-08 au
q 2.270058974826837 1.9541e-07 au
i 10.16935115514233 8.0491e-06 deg
node 52.41134744349704 4.2833e-05 deg
peri 123.6255540756769 5.1327e-05 deg
M 218.1813361096257 3.1987e-05 deg
tp 2459627.736667412587
(2022-Feb-17.23666741)
0.00014679 TDB
period 1592.210743453898
4.36
2.4578e-05
6.729e-08
d
yr
n .2261007228346363 3.4901e-09 deg/d
Q 3.066951777304508 3.1561e-08 au
  Orbit Determination Parameters
   # obs. used (total)      126  
   data-arc span      8570 days (23.46 yr)  
   first obs. used      1996-04-09  
   last obs. used      2019-09-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59996  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 07:41:20  

Additional Information
 Earth MOID = 1.2908 au 
 Jupiter MOID = 1.94027 au 
 T_jup = 3.344 
[ 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 16.6   n/a MPO450229  

305891 (2009 FW22)          Discovered 2009-Mar-19 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2009 FW22 = 1996 GB4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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