+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   295179 (2008 FH90) Classification: Main-belt Asteroid          SPK-ID: 2295179 [ 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 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .03298830427084005 4.7382e-08   a 2.718951334113432 2.781e-08 au q 2.629257740206091 1.396e-07 au i 5.740959212276484 6.658e-06 deg node 145.4360235365613 4.7986e-05 deg peri 312.749679147325 0.00011307 deg M 316.2012946749909 0.00010301 deg tp 2459199.732117444665 (2020-Dec-16.23211744) 0.00046831 TDB period 1637.572657635733 4.48 2.5124e-05 6.879e-08 d yr n .2198375738147428 3.3729e-09 deg/d Q 2.808644928020773 2.8728e-08 au   Orbit Determination Parameters    # obs. used (total)      210      data-arc span      7558 days (20.69 yr)      first obs. used      1999-02-12      last obs. used      2019-10-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60575      source      ORB      producer      Otto Matic      solution date      2019-Nov-08 06:59:10   Additional Information  Earth MOID = 1.65 au   Jupiter MOID = 2.22912 au   T_jup = 3.351  [ hide covariance matrix ] Orbital Elements at Epoch 2457337.5 (2015-Nov-11.0) TDB Reference: JPL 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .03108142111843008 4.6788e-08   q 2.634595901092017 1.3763e-07 au tp 2457554.955998831800 (2016-Jun-15.45599883) 0.00050552 TDB node 145.5404376152602 4.7948e-05 deg peri 311.1803733683977 0.00011997 deg i 5.742866052211647 6.6625e-06 deg   Orbit Determination Parameters    # obs. used (total)      210      data-arc span      7558 days (20.69 yr)      first obs. used      1999-02-12      last obs. used      2019-10-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60575      source      ORB      producer      Otto Matic      solution date      2019-Nov-08 06:59:10   Additional Information  Jupiter MOID = 2.22912 au   T_jup = 3.351  Orbit Covariance (6×6)   e q tp node peri i e 2.189147331432453E-15 -6.326039129368615E-15 6.888460385854744E-12 9.29432517310764E-15 1.520068878734057E-12 8.264397835229697E-16 q -6.326039129368615E-15 1.894113897585395E-14 -2.044455164369502E-11 -2.745330560259365E-14 -4.529008863224414E-12 -1.121401933307246E-15 tp 6.888460385854744E-12 -2.044455164369502E-11 2.555541226768063E-7 3.718950696348926E-11 5.561445427514009E-8 4.228155622224431E-12 node 9.29432517310764E-15 -2.745330560259365E-14 3.718950696348926E-11 2.29900023458519E-9 -2.278922948838103E-9 6.394018398490756E-11 peri 1.520068878734057E-12 -4.529008863224414E-12 5.561445427514009E-8 -2.278922948838103E-9 1.439399945873779E-8 -6.275951029999062E-11 i 8.264397835229697E-16 -1.121401933307246E-15 4.228155622224431E-12 6.394018398490756E-11 -6.275951029999062E-11 4.438826839803084E-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.arc Last Updated: 2011-09-14 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Sep-26 21:58 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin