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JPL Small-Body Database Browser

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41943 Fredrick (2000 XH2) Classification:           SPK-ID: 2041943 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units  .1422320953437232 8.0922e-08   2.533533505046689 1.6147e-08 au 2.173183726000371 2.071e-07 au 14.37700368218717 7.7914e-06 deg 62.70002888638402 1.8444e-05 deg 358.1687849093854 2.5059e-05 deg 221.2988140822354 1.6672e-05 deg 2459168.000277924312
(2020-Nov-14.50027792) 7.0042e-05 TDB 1472.951357271603
4.03 1.4082e-05
3.855e-08 d
yr .2444072563718873 2.3365e-09 deg/d 2.893883284093007 1.8444e-08 au Orbit Determination Parameters        798           7387 days (20.22 yr)           1998-04-21           2018-07-12           DE431           SB431-N16           0           .52636           ORB           Otto Matic           2018-Oct-03 22:18:17  
Additional Information  = 1.18582 au    = 2.44598 au    = 3.392  [ 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 H 14.5   n/a MPO452748   diameter 4.079 km 0.220 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   albedo 0.153   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
41943 Fredrick Discovered 2000 Dec. 3 by L. Robinson at Sunflower Observatory. Richard Fredrick (b. 1953) is an amateur astronomer and team member of the Powell Observatory Near-Earth-Object follow-up program. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20020921/MPCPages.arc Last Updated: 2003-10-02
[ show close-approach data ]
Alternate Designations
 2000 XH2 = 1998 HQ116  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2019-Oct-19 02:31 UT
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