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186822 (2004 FE31)
Classification: Apollo [NEO]          SPK-ID: 2186822
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 199 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4525026195207871 3.6641e-08  
a 1.573624121473895 4.9278e-09 au
q .8615550843658605 5.7566e-08 au
i 13.06187287164792 5.2772e-06 deg
node 200.7653461049336 1.3938e-05 deg
peri 150.3201246469144 1.6312e-05 deg
M 35.47023520213537 6.0397e-06 deg
tp 2459129.458601782670
(2020-Oct-06.95860178)
1.212e-05 TDB
period 721.0243521785028
1.97
3.3868e-06
9.273e-09
d
yr
n .4992896549364749 2.3453e-09 deg/d
Q 2.28569315858193 7.1576e-09 au
  Orbit Determination Parameters
   # obs. used (total)      859  
   data-arc span      6884 days (18.85 yr)  
   first obs. used      2002-04-04  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53392  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-18 06:26:46  

Additional Information
 Earth MOID = .0736205 au 
 Jupiter MOID = 3.19299 au 
 T_jup = 4.262 
[ 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 17.96   n/a E2021B55  

186822 (2004 FE31)          Discovered 2004-Mar-29 by Spacewatch at Kitt Peak
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

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