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30867 (1992 EL9)
Classification: Main-belt Asteroid          SPK-ID: 2030867
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1423570273900098 3.3313e-08  
a 3.161247411994359 1.7878e-08 au
q 2.71122162757848 1.0415e-07 au
i 5.673631260556617 3.8205e-06 deg
node 112.743190152318 4.5809e-05 deg
peri 334.8616771200499 4.8985e-05 deg
M 100.8469504702227 1.6592e-05 deg
tp 2458625.395949530003
(2019-May-21.89594953)
9.3995e-05 TDB
period 2052.986800332959
5.62
1.7416e-05
4.768e-08
d
yr
n .1753542691758243 1.4876e-09 deg/d
Q 3.611273196410237 2.0423e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1277  
   data-arc span      11082 days (30.34 yr)  
   first obs. used      1990-11-11  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49054  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:41:24  

Additional Information
 Earth MOID = 1.7287 au 
 Jupiter MOID = 1.59526 au 
 T_jup = 3.181 
[ 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 13.99   n/a E2021B10  
diameter diameter 6.985 km 0.565 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.69112 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 0.173   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30867 (1992 EL9)          Discovered 1992-Mar-02 by UESAC at La Silla
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1992 EL9 = 1990 VZ10 = 1998 HW22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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