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173631 (2001 FH87)
Classification: Main-belt Asteroid          SPK-ID: 2173631
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1645410679710168 5.7722e-08  
a 2.434993626437459 1.5316e-08 au
q 2.03433717464082 1.336e-07 au
i 13.90544654867263 5.8064e-06 deg
node 38.92843851254874 2.4428e-05 deg
peri 81.86164609436371 3.3563e-05 deg
M 70.93609607640671 2.3812e-05 deg
tp 2458727.029834817892
(2019-Aug-31.52983482)
9.0351e-05 TDB
period 1387.858437536751
3.80
1.3094e-05
3.585e-08
d
yr
n .2593924497364069 2.4474e-09 deg/d
Q 2.835650078234098 1.7836e-08 au
  Orbit Determination Parameters
   # obs. used (total)      367  
   data-arc span      6977 days (19.10 yr)  
   first obs. used      2001-03-21  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6023  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:28:59  

Additional Information
 Earth MOID = 1.10339 au 
 Jupiter MOID = 2.37427 au 
 T_jup = 3.447 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457241.5 (2015-Aug-07.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .164580258158896 5.815e-08  
q 2.034293092378487 1.3482e-07 au
tp 2457340.225885299997
(2015-Nov-13.72588530)
8.3506e-05 TDB
node 38.95158877518063 2.4439e-05 deg
peri 82.19924798982329 3.3478e-05 deg
i 13.90245468489768 5.8052e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      367  
   data-arc span      6977 days (19.10 yr)  
   first obs. used      2001-03-21  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6023  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:28:59  

Additional Information
 Jupiter MOID = 2.37427 au 
 T_jup = 3.447 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.381368826503388E-15 -7.816191441981157E-15 3.150596174749854E-12 4.806332660386797E-14 8.377107718601483E-13 -3.123142229796985E-14
q -7.816191441981157E-15 1.817680640856025E-14 -7.225195931462402E-12 -1.119495531208533E-13 -1.924250947912908E-12 7.211281431261942E-14
tp 3.150596174749854E-12 -7.225195931462402E-12 6.97317540056529E-9 5.095635659872913E-11 1.948211400678617E-9 -4.078643712883352E-11
node 4.806332660386797E-14 -1.119495531208533E-13 5.095635659872913E-11 5.972806396180687E-10 -5.654215669231136E-10 -7.104165307485442E-11
peri 8.377107718601483E-13 -1.924250947912908E-12 1.948211400678617E-9 -5.654215669231136E-10 1.120769730811731E-9 5.771182211778137E-11
i -3.123142229796985E-14 7.211281431261942E-14 -4.078643712883352E-11 -7.104165307485442E-11 5.771182211778137E-11 3.370091165170082E-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 16.5   n/a MPO412971  

173631 (2001 FH87)          Discovered 2001-Mar-21 by LONEOS at Anderson Mesa
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

Alternate Designations
 2001 FH87 = 2003 UY11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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