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85586 (1998 FP8)
Classification: Main-belt Asteroid          SPK-ID: 2085586
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1901191998312212 5.8366e-08  
a 2.665115201817772 1.2684e-08 au
q 2.158425632190153 1.5805e-07 au
i 13.90972043861945 6.1147e-06 deg
node 18.83996619633668 1.3631e-05 deg
peri 337.4258835210955 1.6159e-05 deg
M 227.8949123609409 9.0432e-06 deg
tp 2459583.662312384126
(2022-Jan-04.16231238)
4.1394e-05 TDB
period 1589.177496569129
4.35
1.1345e-05
3.106e-08
d
yr
n .2265322789790336 1.6172e-09 deg/d
Q 3.17180477144539 1.5096e-08 au
  Orbit Determination Parameters
   # obs. used (total)      965  
   data-arc span      8118 days (22.23 yr)  
   first obs. used      1998-03-21  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51976  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:56:13  

Additional Information
 Earth MOID = 1.162 au 
 Jupiter MOID = 2.29764 au 
 T_jup = 3.316 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO337903  
diameter diameter 3.008 km 0.431 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 16. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 [lower-limit; Incomplete or inconclusive result.]
geometric albedo albedo 0.195   0.068 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85586 (1998 FP8)          Discovered 1998-Mar-21 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 FP8 = 2000 XZ50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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