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18892 (2000 ET137)
Classification: Main-belt Asteroid          SPK-ID: 2018892
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1709435313197171 3.3864e-08  
a 2.669512405073376 1.2634e-08 au
q 2.213176527648342 8.9147e-08 au
i 13.28342727018949 4.0917e-06 deg
node 80.04881522838001 1.8189e-05 deg
peri 200.3124159802795 2.2278e-05 deg
M 180.5879855159647 1.4191e-05 deg
tp 2459794.454041404245
(2022-Aug-02.95404140)
6.4213e-05 TDB
period 1593.112120877288
4.36
1.131e-05
3.097e-08
d
yr
n .2259727958141181 1.6042e-09 deg/d
Q 3.12584828249841 1.4794e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2001  
   data-arc span      10007 days (27.40 yr)  
   first obs. used      1992-09-04  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44434  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:36:54  

Additional Information
 Earth MOID = 1.20148 au 
 Jupiter MOID = 2.01096 au 
 T_jup = 3.323 
[ 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 13.6   n/a MPO319321  
diameter diameter 8.232 km 1.799 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
rotation period rot_per 186.790 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.]
geometric albedo albedo 0.095   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

18892 (2000 ET137)          Discovered 2000-Mar-09 by LINEAR at Socorro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 ET137 = 1992 RL = 2000 GP136 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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