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231937 (2001 FO32)
Classification: Apollo [NEO, PHA]          SPK-ID: 2231937
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 65 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8261262368050877 1.2898e-07  
a 1.701128763532303 2.607e-09 au
q .2957816597944697 2.1939e-07 au
i 38.98192763881084 3.8463e-05 deg
node 181.7315413145555 4.437e-06 deg
peri 123.3136643500094 2.2215e-05 deg
M 299.1600437328925 5.2036e-06 deg
tp 2459337.459007821707
(2021-May-02.95900782)
1.1838e-05 TDB
period 810.4089128425437
2.22
1.863e-06
5.101e-09
d
yr
n .4442201884691577 1.0212e-09 deg/d
Q 3.106475867270137 4.7608e-09 au
  Orbit Determination Parameters
   # obs. used (total)      208  
   # delay obs. used      0  
   # Doppler obs. used      1  
   data-arc span      7304 days (20.00 yr)  
   first obs. used      2001-03-23  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .3488  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-18 06:26:47  

Additional Information
 Earth MOID = .00375128 au 
 Jupiter MOID = 3.10609 au 
 T_jup = 3.560 
[ 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 17.7   n/a MPO229967  
diameter diameter 0.55 km 0.11 personal communication from Ned Wright (2021-Mar-09) based on a preliminary NEOWISE result

231937 (2001 FO32)          Discovered 2001-Mar-23 by LINEAR at Socorro
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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