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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0505795929444887 4.9831e-08  
a 2.752935212676675 2.5536e-08 au
q 2.613692870216939 1.4771e-07 au
i 4.715106271239274 5.4846e-06 deg
node 341.6800730221816 5.9365e-05 deg
peri 331.7129655521211 8.1431e-05 deg
M 3.649099550079604 5.7794e-05 deg
tp 2459183.588753348419
(2020-Nov-30.08875335)
0.00026778 TDB
period 1668.370158450803
4.57
2.3214e-05
6.356e-08
d
yr
n .2157794528848951 3.0024e-09 deg/d
Q 2.892177555136411 2.6828e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57176  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:35:55  

Additional Information
 Earth MOID = 1.59902 au 
 Jupiter MOID = 2.26414 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. 2020-October); 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

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