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JPL Small-Body Database Browser

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26021 (4177 P-L) Classification:           SPK-ID: 2026021 [ 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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units  .09097429992280935 4.1866e-08   2.448005190918645 1.2098e-08 au 2.225299632467418 1.0642e-07 au 7.085229627173631 5.7263e-06 deg 335.148568114126 3.2838e-05 deg 270.773010956116 4.9052e-05 deg 315.9185184508887 3.9378e-05 deg 2459171.805225189241
(2020-Nov-18.30522519) 0.00015329 TDB 1398.99746789182
3.83 1.037e-05
2.839e-08 d
yr .2573271276484094 1.9075e-09 deg/d 2.670710749369872 1.3198e-08 au Orbit Determination Parameters        908           21681 days (59.36 yr)           1960-09-24           2020-02-03           DE431           SB431-N16           0           .55572           ORB           Otto Matic           2020-Feb-23 00:37:22  
Additional Information  = 1.22583 au    = 2.38274 au    = 3.481  [ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes H 15.2   n/a MPO365559   diameter 3.261 km 0.555 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rot_per 72.725 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.] albedo 0.166   0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
26021 (4177 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar Reference: 20010606/Numbers.arc Last Updated: 2004-04-19
Alternate Designations
 4177 P-L = 2001 FE49  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Apr-08 23:59 UT
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