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295179 (2008 FH90)
Classification: Main-belt Asteroid          SPK-ID: 2295179
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03315735683390578 4.6887e-08  
a 2.719550759690067 2.592e-08 au
q 2.629377644723104 1.3806e-07 au
i 5.741051377226432 6.0043e-06 deg
node 145.432295808656 4.557e-05 deg
peri 312.5118976785682 0.00010281 deg
M .396061569895801 9.0809e-05 deg
tp 2459198.697794193886
(2020-Dec-15.19779419)
0.00041322 TDB
period 1638.114221411717
4.48
2.342e-05
6.412e-08
d
yr
n .219764895081464 3.1419e-09 deg/d
Q 2.80972387465703 2.678e-08 au
  Orbit Determination Parameters
   # obs. used (total)      230  
   data-arc span      8001 days (21.91 yr)  
   first obs. used      1999-02-12  
   last obs. used      2021-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58233  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 14:58:31  

Additional Information
 Earth MOID = 1.64999 au 
 Jupiter MOID = 2.22788 au 
 T_jup = 3.351 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457558.5 (2016-Jun-19.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0309715621447277 4.6427e-08  
q 2.634487667589183 1.3637e-07 au
tp 2457555.940175508863
(2016-Jun-16.44017551)
0.00045564 TDB
node 145.5393731808967 4.554e-05 deg
peri 311.4105387363052 0.00010977 deg
i 5.742911147380662 6.0078e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      230  
   data-arc span      8001 days (21.91 yr)  
   first obs. used      1999-02-12  
   last obs. used      2021-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58233  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 14:58:31  

Additional Information
 Jupiter MOID = 2.22788 au 
 T_jup = 3.351 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.15546602822866E-15 -6.235387745874975E-15 7.209449532930751E-12 6.502001697200086E-16 1.599586290115716E-12 -5.163230148373617E-16
q -6.235387745874975E-15 1.859709774338014E-14 -2.35119041884175E-11 -3.250439760576341E-15 -5.210178471028419E-12 2.407368395955041E-15
tp 7.209449532930751E-12 -2.35119041884175E-11 2.076042499974248E-7 -1.370769305527122E-11 4.552485389992982E-8 -6.507658812638045E-12
node 6.502001697200086E-16 -3.250439760576341E-15 -1.370769305527122E-11 2.073895487470255E-9 -2.066049851114528E-9 2.973838863282528E-11
peri 1.599586290115716E-12 -5.210178471028419E-12 4.552485389992982E-8 -2.066049851114528E-9 1.20488390440586E-8 -3.104210572837143E-11
i -5.163230148373617E-16 2.407368395955041E-15 -6.507658812638045E-12 2.973838863282528E-11 -3.104210572837143E-11 3.60937446939698E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO455182  
diameter diameter 2.817 km 0.285 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

295179 (2008 FH90)          Discovered 2008-Mar-29 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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