Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1643833524598533 5.5427e-08  
a 2.435246744342618 1.5283e-08 au
q 2.034932720440635 1.2726e-07 au
i 13.90421458975581 5.7383e-06 deg
node 38.92557983687283 2.2108e-05 deg
peri 81.89457832840742 3.1533e-05 deg
M 122.7944071478702 2.3916e-05 deg
tp 2458727.033811943230
(2019-Aug-31.53381194)
8.9558e-05 TDB
period 1388.074845258892
3.80
1.3067e-05
3.578e-08
d
yr
n .2593520091727157 2.4415e-09 deg/d
Q 2.835560768244601 1.7796e-08 au
  Orbit Determination Parameters
   # obs. used (total)      389  
   data-arc span      7022 days (19.23 yr)  
   first obs. used      2001-03-21  
   last obs. used      2020-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59893  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:57:51  

Additional Information
 Earth MOID = 1.10388 au 
 Jupiter MOID = 2.37336 au 
 T_jup = 3.447 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457435.5 (2016-Feb-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1648437963030056 5.5775e-08  
q 2.034276137370982 1.285e-07 au
tp 2457340.210488366683
(2015-Nov-13.71048837)
8.2278e-05 TDB
node 38.94300322013884 2.2114e-05 deg
peri 82.20169986048883 3.1399e-05 deg
i 13.90246911631941 5.7378e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      389  
   data-arc span      7022 days (19.23 yr)  
   first obs. used      2001-03-21  
   last obs. used      2020-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59893  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:57:51  

Additional Information
 Jupiter MOID = 2.37336 au 
 T_jup = 3.447 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.110846142553893E-15 -7.145672705343141E-15 2.92150597543356E-12 5.069975555488361E-14 7.528062336656853E-13 -2.986516073609143E-14
q -7.145672705343141E-15 1.651224910830965E-14 -6.661149913741755E-12 -1.174027388278464E-13 -1.715363712012967E-12 6.848194364450144E-14
tp 2.92150597543356E-12 -6.661149913741755E-12 6.769654166654044E-9 6.381461860777579E-11 1.863193987547946E-9 -4.044564247651439E-11
node 5.069975555488361E-14 -1.174027388278464E-13 6.381461860777579E-11 4.890094859564622E-10 -4.567474389542249E-10 -6.201273557759905E-11
peri 7.528062336656853E-13 -1.715363712012967E-12 1.863193987547946E-9 -4.567474389542249E-10 9.858894436613865E-10 4.916103629379396E-11
i -2.986516073609143E-14 6.848194364450144E-14 -4.044564247651439E-11 -6.201273557759905E-11 4.916103629379396E-11 3.29218738347224E-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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-12 18:48 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin