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123912 (2001 DM91)
Classification: Main-belt Asteroid          SPK-ID: 2123912
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05984419340853495 4.5583e-08  
a 3.058798042773418 2.4982e-08 au
q 2.875746741104037 1.3853e-07 au
i 1.065824509435142 5.0818e-06 deg
node 337.5491558602519 0.00022912 deg
peri 169.5534041607301 0.00023207 deg
M 211.644622499753 3.845e-05 deg
tp 2459805.740156424224
(2022-Aug-14.24015642)
0.00021283 TDB
period 1954.000328112392
5.35
2.3938e-05
6.554e-08
d
yr
n .1842374306803561 2.2571e-09 deg/d
Q 3.241849344442798 2.6477e-08 au
  Orbit Determination Parameters
   # obs. used (total)      539  
   data-arc span      7204 days (19.72 yr)  
   first obs. used      1999-12-07  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55774  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:20:33  

Additional Information
 Earth MOID = 1.88725 au 
 Jupiter MOID = 1.74964 au 
 T_jup = 3.232 
[ 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 15.3   n/a MPO417646  

123912 (2001 DM91)          Discovered 2001-Feb-20 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 2001 DM91 = 2002 JT138 = 2004 RL231 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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