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JPL Small-Body Database Browser
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172756 (2004 DJ12)
Classification: Main-belt Asteroid          SPK-ID: 2172756
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .202476630296418 7.3459e-08  
a 2.730497640524097 2.4281e-08 au
q 2.177635679238457 1.9314e-07 au
i 4.474329420553569 6.4091e-06 deg
node 25.03401427941807 8.3345e-05 deg
peri 119.8964923608281 8.5346e-05 deg
M 232.793369947834 2.5121e-05 deg
tp 2459582.828950977273
(2022-Jan-03.32895098)
0.00012154 TDB
period 1648.014905086691
4.51
2.1983e-05
6.019e-08
d
yr
n .2184446262523716 2.9138e-09 deg/d
Q 3.283359601809736 2.9197e-08 au
  Orbit Determination Parameters
   # obs. used (total)      345  
   data-arc span      7587 days (20.77 yr)  
   first obs. used      1998-12-17  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55622  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 19:43:06  

Additional Information
 Earth MOID = 1.19379 au 
 Jupiter MOID = 1.73942 au 
 T_jup = 3.320 
[ 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 15.8   n/a MPO493966  

172756 (2004 DJ12)          Discovered 2004-Feb-17 by NEAT at Haleakala
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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