+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   144633 Georgecarroll (2004 FH80) Classification: Main-belt Asteroid          SPK-ID: 2144633 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1539118002606426 3.4775e-08   a 2.607659095465714 1.1715e-08 au q 2.206309589616547 8.8898e-08 au i 12.86664295000421 3.9922e-06 deg node 19.82123811854174 2.0581e-05 deg peri 56.16822740054941 2.9638e-05 deg M 102.7514610143485 1.8318e-05 deg tp 2458761.504413773450 (2019-Oct-05.00441377) 7.8419e-05 TDB period 1538.064855540002 4.21 1.0365e-05 2.838e-08 d yr n .2340603510335116 1.5773e-09 deg/d Q 3.00900860131488 1.3518e-08 au   Orbit Determination Parameters    # obs. used (total)      858      data-arc span      8096 days (22.17 yr)      first obs. used      1998-12-24      last obs. used      2021-02-22      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .5144      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 18:53:24   Additional Information  Earth MOID = 1.24688 au   Jupiter MOID = 2.39577 au   T_jup = 3.359  [ 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 15.20   n/a E2021B55   diameter diameter 3.362 km 0.575 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.156   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   144633 Georgecarroll           Discovered 2004 Mar. 21 at Stony Ridge Observatory. George Carroll (1902-1983) was a builder of precision instruments, heliostats, refractor and reflector telescopes from the mid-1950s through the 1970s. The discovery of (144633) was made using his largest telescope, the 0.76-m Cassegrain/Newtonian reflector at Stony Ridge Observatory in California. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20070402/MPCPages.arc Last Updated: 2007-07-05 [ show close-approach data ] Alternate Designations  2004 FH80 = 2002 XN36  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jun-15 15:22 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin