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488515 (2001 FE90)
Classification: Apollo [NEO, PHA]          SPK-ID: 2488515
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 58 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4944467963680035 1.6689e-08  
a 1.93470658708624 5.329e-09 au
q .9780971131893749 3.2007e-08 au
i 8.792453594556569 7.2789e-06 deg
node 98.53550358336159 5.6354e-06 deg
peri 145.11242433 1.1127e-05 deg
M 176.2208217367792 7.2002e-06 deg
tp 2458915.355181018982
(2020-Mar-06.85518102)
1.7803e-05 TDB
period 982.9266095007383
2.69
4.0611e-06
1.112e-08
d
yr
n .3662531836256384 1.5132e-09 deg/d
Q 2.891316060983105 7.9638e-09 au
  Orbit Determination Parameters
   # obs. used (total)      292  
   # delay obs. used      1  
   # Doppler obs. used      0  
   data-arc span      5836 days (15.98 yr)  
   first obs. used      2001-03-26  
   last obs. used      2017-03-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42707  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 17:25:17  

Additional Information
 Earth MOID = .0145837 au 
 Jupiter MOID = 2.16168 au 
 T_jup = 3.737 
[ 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 20.6   n/a E2017F13  
rotation period rot_per 0.4777 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Hicks, M.; Lawrence, K.; Rhoades, H.; Somers, J; et al. (2009) Astronomer's Telegram 2116. http://www.astronomerstelegram.org]
[Oey, J. (2011) http://minorplanet.haoeydental.com.au]
[Skiff, B.A.; Bowell, E.; Koehn, B.W.; Sanborn, J.J.; McLelland, K.P.; Warner, B.D. (2012) Minor Planet Bull. 39, 111-130.]
[Koehn, B.W.; Bowell, E.L.G.; Skiff, B.A.; Sanborn, J.J.; et al. (2014) Minor Planet Bull. 41, 286-300.]
[Skiff, B.A.; McLelland, K.P.; Sanborn, J.; Pravec, P.; Koehn, B.W. (2019). Minor Planet Bull. 46, 458-503.]

488515 (2001 FE90)          Discovered 2001-Mar-26 by LONEOS at Anderson Mesa
Reference: Last Updated: 2017-05-15

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