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101251 (1998 SE92)
Classification: Main-belt Asteroid          SPK-ID: 2101251
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05068906890441128 4.9937e-08  
a 2.752694643479835 2.4502e-08 au
q 2.613163115023681 1.4755e-07 au
i 4.712517404087275 5.4812e-06 deg
node 341.7161446718627 5.9438e-05 deg
peri 332.4081368529356 8.1452e-05 deg
M 319.8299017812143 5.7671e-05 deg
tp 2459186.638357078274
(2020-Dec-03.13835708)
0.00026774 TDB
period 1668.151473845321
4.57
2.2273e-05
6.098e-08
d
yr
n .215807740270822 2.8814e-09 deg/d
Q 2.892226171935988 2.5744e-08 au
  Orbit Determination Parameters
   # obs. used (total)      553  
   data-arc span      7914 days (21.67 yr)  
   first obs. used      1998-09-15  
   last obs. used      2020-05-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57179  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:01:35  

Additional Information
 Earth MOID = 1.60053 au 
 Jupiter MOID = 2.26721 au 
 T_jup = 3.338 
[ 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 15.3   n/a MPO432540  
diameter diameter 4.871 km 0.211 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 9.46252 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.082   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101251 (1998 SE92)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 1998 SE92 = 2002 NO41 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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