+ 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 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .03298832189840651 4.6997e-08   a 2.718951333480732 2.7071e-08 au q 2.629257691665768 1.3882e-07 au i 5.740959110126978 6.37e-06 deg node 145.4360075430762 4.7267e-05 deg peri 312.7496151123057 0.00010945 deg M 316.2013780633405 9.8693e-05 deg tp 2459199.731738057120 (2020-Dec-16.23173806) 0.00044848 TDB period 1637.572657064138 4.48 2.4457e-05 6.696e-08 d yr n .2198375738914771 3.2832e-09 deg/d Q 2.808644975295696 2.7964e-08 au   Orbit Determination Parameters    # obs. used (total)      220      data-arc span      7923 days (21.69 yr)      first obs. used      1999-02-12      last obs. used      2020-10-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59259      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 19:50:21   Additional Information  Earth MOID = 1.65 au   Jupiter MOID = 2.22912 au   T_jup = 3.351  [ hide covariance matrix ] Orbital Elements at Epoch 2457455.5 (2016-Mar-08.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .03099837461592117 4.6453e-08   q 2.634504733831345 1.3695e-07 au tp 2457555.617188542832 (2016-Jun-16.11718854) 0.00048741 TDB node 145.5400318885823 4.7232e-05 deg peri 311.3344336088846 0.00011635 deg i 5.742880251814399 6.3743e-06 deg   Orbit Determination Parameters    # obs. used (total)      220      data-arc span      7923 days (21.69 yr)      first obs. used      1999-02-12      last obs. used      2020-10-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59259      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 19:50:21   Additional Information  Jupiter MOID = 2.22912 au   T_jup = 3.351  Orbit Covariance (6×6)   e q tp node peri i e 2.157883117835657E-15 -6.256953905071537E-15 6.851693838112372E-12 6.737644995858783E-15 1.517580492724722E-12 4.757079460324434E-16 q -6.256953905071537E-15 1.875661250048901E-14 -2.116862545485714E-11 -2.090694995899061E-14 -4.695622308023253E-12 -3.181240203985758E-16 tp 6.851693838112372E-12 -2.116862545485714E-11 2.375636971450212E-7 9.101075952857218E-12 5.184680149037902E-8 1.069447611867473E-12 node 6.737644995858783E-15 -2.090694995899061E-14 9.101075952857218E-12 2.230831095369814E-9 -2.217134606149005E-9 5.640720454738864E-11 peri 1.517580492724722E-12 -4.695622308023253E-12 5.184680149037902E-8 -2.217134606149005E-9 1.353771767195358E-8 -5.593232869023324E-11 i 4.757079460324434E-16 -3.181240203985758E-16 1.069447611867473E-12 5.640720454738864E-11 -5.593232869023324E-11 4.063139250218251E-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 ] 2021-Jan-19 06:36 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin