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266520 (2008 ET152)
Classification: Main-belt Asteroid          SPK-ID: 2266520
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1425822418070519 1.1334e-07  
a 2.25892543136424 2.4983e-08 au
q 1.936842779285364 2.5787e-07 au
i 3.135124754748109 8.5106e-06 deg
node 79.35005855247593 0.00018663 deg
peri 343.7291760484051 0.00018969 deg
M 321.5299188301412 3.7956e-05 deg
tp 2459133.017084051145
(2020-Oct-10.51708405)
0.0001319 TDB
period 1240.08447104057
3.40
2.0573e-05
5.633e-08
d
yr
n .2903028046935541 4.8161e-09 deg/d
Q 2.581008083443114 2.8546e-08 au
  Orbit Determination Parameters
   # obs. used (total)      115  
   data-arc span      8811 days (24.12 yr)  
   first obs. used      1994-01-08  
   last obs. used      2018-02-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58745  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:40:11  

Additional Information
 Earth MOID = .950293 au 
 Jupiter MOID = 2.7052 au 
 T_jup = 3.606 
[ 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 17.9   n/a MPO437227  

266520 (2008 ET152)          Discovered 2008-Mar-11 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2008 ET152 = 2005 JW184 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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