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88254 (2001 FM129)
Classification: Apollo [NEO, PHA]          SPK-ID: 2088254
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 166 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .629429998392146 3.4417e-08  
a 1.182389773727141 1.2518e-09 au
q .4381581803511768 4.0551e-08 au
i 1.522078590276406 2.1089e-06 deg
node 272.1514837888911 0.00017426 deg
peri 140.1806412292603 0.00017405 deg
M 323.5832191224962 2.8565e-06 deg
tp 2459444.004907465432
(2021-Aug-17.50490747)
3.7763e-06 TDB
period 469.6122577413261
1.29
7.4574e-07
2.042e-09
d
yr
n .7665898708255114 1.2173e-09 deg/d
Q 1.926621367103105 2.0396e-09 au
  Orbit Determination Parameters
   # obs. used (total)      783  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      15752 days (43.13 yr)  
   first obs. used      1978-05-08  
   last obs. used      2021-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41111  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-02 05:55:45  

Additional Information
 Earth MOID = .0100515 au 
 Jupiter MOID = 3.46537 au 
 T_jup = 5.141 
[ 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 17.71   n/a MPO637207  
diameter diameter 0.800 km 0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2014ApJ...784..110M)  
rotation period rot_per 38.56 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D.; Stephens, R.D. (2019) Minor Planet Bull. 46, 304-314.]
geometric albedo albedo 0.252   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2014ApJ...784..110M)  

88254 (2001 FM129)          Discovered 2001-Mar-31 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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