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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1708872645328729 1.9373e-08  
a 2.669535956341714 1.1538e-08 au
q 2.213346259190331 5.3354e-08 au
i 13.28216261609911 1.1335e-06 deg
node 80.04467063437536 4.8517e-06 deg
peri 200.3564982933204 7.1591e-06 deg
M 225.7249203078215 8.8587e-06 deg
tp 2459794.716910655461
(2022-Aug-03.21691066)
4.1187e-05 TDB
period 1593.133203319385
4.36
1.0328e-05
2.828e-08
d
yr
n .2259698054437126 1.465e-09 deg/d
Q 3.125725653493097 1.3509e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2288  
   data-arc span      10409 days (28.50 yr)  
   first obs. used      1992-09-04  
   last obs. used      2021-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42761  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 02:05:28  

Additional Information
 Earth MOID = 1.19983 au 
 Jupiter MOID = 2.01037 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 13.64   n/a E2021B10  
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 185.377 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[McNeill, A.; Mommert, M.; Trilling, D.E.; Llama, J.; Skiff, B. (2019) Ap. J. Suppl. Series 245, id.29.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
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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