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101168 (1998 SX2)
Classification: Main-belt Asteroid          SPK-ID: 2101168
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .259429142770136 3.1001e-08  
a 2.364232668236801 8.654e-09 au
q 1.750881813806977 7.1628e-08 au
i 9.796527006481286 5.125e-06 deg
node 202.5756319807671 1.9988e-05 deg
peri 78.34534276471827 2.2841e-05 deg
M 100.9580339271757 1.1727e-05 deg
tp 2458828.132189165646
(2019-Dec-10.63218917)
4.2125e-05 TDB
period 1327.80331278107
3.64
7.2904e-06
1.996e-08
d
yr
n .2711244930139418 1.4886e-09 deg/d
Q 2.977583522666626 1.0899e-08 au
  Orbit Determination Parameters
   # obs. used (total)      728  
   data-arc span      10652 days (29.16 yr)  
   first obs. used      1991-11-13  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59142  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:35:31  

Additional Information
 Earth MOID = .765512 au 
 Jupiter MOID = 2.24435 au 
 T_jup = 3.484 
[ 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 16.11   n/a E2021B55  
diameter diameter 3.187 km 0.825 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
rotation period rot_per 79.3533 h n/a LCDB (Rev. 2020-October); 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.063   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

101168 (1998 SX2)          Discovered 1998-Sep-18 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 SX2 = 2001 FE134 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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