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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456149.5 (2012-Aug-10.0) TDB
Reference: JPL 65 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8261869765928184 1.2935e-07  
q .295738752601559 2.2009e-07 au
tp 2456095.782621851373
(2012-Jun-17.28262185)
1.1218e-05 TDB
node 181.9160560843777 4.5185e-06 deg
peri 123.189244641301 2.22e-05 deg
i 38.9102883337864 3.8479e-05 deg
  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
 Jupiter MOID = 3.10609 au 
 T_jup = 3.560 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.673100125724283E-14 -2.846885806555119E-14 -1.101915094282803E-12 2.928493152534109E-13 2.684970126826452E-12 -5.896911933153132E-13
q -2.846885806555119E-14 4.844175441503231E-14 1.873949990281792E-12 -4.981862361176889E-13 -4.567930102922755E-12 1.007797867935016E-12
tp -1.101915094282803E-12 1.873949990281792E-12 1.258415261813957E-10 -2.112224097887944E-11 -1.580081312114194E-10 6.761458726714248E-11
node 2.928493152534109E-13 -4.981862361176889E-13 -2.112224097887944E-11 2.041691132945382E-11 2.009485441725653E-11 -5.226738820019053E-11
peri 2.684970126826452E-12 -4.567930102922755E-12 -1.580081312114194E-10 2.009485441725653E-11 4.92838513872234E-10 4.34627974716105E-11
i -5.896911933153132E-13 1.007797867935016E-12 6.761458726714248E-11 -5.226738820019053E-11 4.34627974716105E-11 1.480617908681367E-9

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 17.59   n/a MPCxxxxx  
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

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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