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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1708653660034994 1.8995e-08  
a 2.669211058416962 1.1314e-08 au
q 2.21313533397996 5.2704e-08 au
i 13.28167370833764 1.1244e-06 deg
node 80.03809237537128 4.8344e-06 deg
peri 200.4126475461399 7.0909e-06 deg
M 269.9569707000464 8.7881e-06 deg
tp 2459794.900978791133
(2022-Aug-03.40097879)
4.0168e-05 TDB
period 1592.842371917865
4.36
1.0127e-05
2.773e-08
d
yr
n .2260110644636741 1.4369e-09 deg/d
Q 3.125286782853964 1.3247e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2417  
   data-arc span      10509 days (28.77 yr)  
   first obs. used      1992-09-04  
   last obs. used      2021-06-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42629  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 04:43:15  

Additional Information
 Earth MOID = 1.20132 au 
 Jupiter MOID = 2.00986 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 13.67   n/a MPCxxxxx  
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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