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129418 (2617 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2129418
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1590196058310747 6.2704e-08  
a 3.092499496119508 2.4244e-08 au
q 2.600731445213787 2.0329e-07 au
i 4.394479841976382 6.2082e-06 deg
node 326.7022626624462 6.4484e-05 deg
peri 14.58816961900682 6.6509e-05 deg
M 333.7739207804524 1.4774e-05 deg
tp 2459145.208403150863
(2020-Oct-22.70840315)
8.1692e-05 TDB
period 1986.382512544292
5.44
2.3358e-05
6.395e-08
d
yr
n .1812339756952894 2.1312e-09 deg/d
Q 3.584267547025229 2.8099e-08 au
  Orbit Determination Parameters
   # obs. used (total)      426  
   data-arc span      15632 days (42.80 yr)  
   first obs. used      1977-10-11  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55729  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:40:35  

Additional Information
 Earth MOID = 1.59262 au 
 Jupiter MOID = 1.81355 au 
 T_jup = 3.200 
[ 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 15.6   n/a MPO436627  

129418 (2617 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 2617 T-3 = 2004 RW38 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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