+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   117265 (2004 TH1) Classification: Outer Main-belt Asteroid          SPK-ID: 2117265 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1550508486023844 4.093e-08   a 3.203298833620948 2.3705e-08 au q 2.706624631140992 1.4014e-07 au i .375656742529423 5.453e-06 deg node 58.37684424552163 0.00063471 deg peri 241.7297179049035 0.00063497 deg M 315.1815805174752 1.7407e-05 deg tp 2459261.204571469013 (2021-Feb-15.70457147) 0.0001016 TDB period 2094.086467405199 5.73 2.3245e-05 6.364e-08 d yr n .1719126719949053 1.9083e-09 deg/d Q 3.699973036100904 2.738e-08 au   Orbit Determination Parameters    # obs. used (total)      731      data-arc span      9332 days (25.55 yr)      first obs. used      1994-11-29      last obs. used      2020-06-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58033      source      ORB      producer      Otto Matic      solution date      2020-Jun-24 01:49:48   Additional Information  Earth MOID = 1.69104 au   Jupiter MOID = 1.52229 au   T_jup = 3.175  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.8   n/a MPO432677   diameter diameter 5.884 km 0.323 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.051   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   117265 (2004 TH1)          Discovered 2004-Oct-04 by Tucker, R. A. at Goodricke-Pigott Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  2004 TH1 = 1998 SZ41 = 2002 FE29  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Jul-05 11:26 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin