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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 151 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .629473976554022 4.8965e-08  
a 1.1823724214848 1.4183e-09 au
q .4380997515649549 5.7622e-08 au
i 1.522251766128052 2.1518e-06 deg
node 272.1525618356726 0.00020994 deg
peri 140.1903313284605 0.0002097 deg
M 19.97896881995495 3.6278e-06 deg
tp 2458974.438438560425
(2020-May-04.93843856)
4.701e-06 TDB
period 469.6019200388362
1.29
8.4493e-07
2.313e-09
d
yr
n .7666067463485411 1.3793e-09 deg/d
Q 1.926645091404646 2.311e-09 au
  Orbit Determination Parameters
   # obs. used (total)      719  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      14971 days (40.99 yr)  
   first obs. used      1978-05-08  
   last obs. used      2019-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40573  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-04 05:40:26  

Additional Information
 Earth MOID = .0100688 au 
 Jupiter MOID = 3.46329 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 17.7   n/a MPO474765  
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. 2019-August); 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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