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JPL Small-Body Database Browser
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154924 (2004 SD40)
Classification: Main-belt Asteroid          SPK-ID: 2154924
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08546247071494213 5.6942e-08  
a 2.742818552108544 2.3937e-08 au
q 2.508410501922568 1.616e-07 au
i 2.554977100251545 5.8549e-06 deg
node 143.4821622818044 0.00012395 deg
peri 229.2513196543232 0.00012768 deg
M 161.7525762548288 3.2107e-05 deg
tp 2458255.008407306282
(2018-May-16.50840731)
0.00014573 TDB
period 1659.182064259249
4.54
2.172e-05
5.947e-08
d
yr
n .2169743801809502 2.8404e-09 deg/d
Q 2.97722660229452 2.5983e-08 au
  Orbit Determination Parameters
   # obs. used (total)      369  
   data-arc span      9454 days (25.88 yr)  
   first obs. used      1993-03-23  
   last obs. used      2019-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57048  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 19:06:20  

Additional Information
 Earth MOID = 1.50928 au 
 Jupiter MOID = 2.44658 au 
 T_jup = 3.342 
[ 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 16.1   n/a MPO417827  

154924 (2004 SD40)          Discovered 2004-Sep-17 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ show close-approach data ]
Alternate Designations
 2004 SD40 = 1997 AJ25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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