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120706 (1997 MD1)
Classification: Main-belt Asteroid          SPK-ID: 2120706
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09287872196600601 5.5809e-08  
a 3.115585950987082 2.377e-08 au
q 2.826214309684158 1.7923e-07 au
i 9.008793201377634 6.8695e-06 deg
node 178.19828750 3.124e-05 deg
peri 31.89620521408172 4.2325e-05 deg
M 90.77031179180106 2.8422e-05 deg
tp 2458494.035092848296
(2019-Jan-10.53509285)
0.00015778 TDB
period 2008.667404303028
5.50
2.2987e-05
6.293e-08
d
yr
n .179223299600918 2.051e-09 deg/d
Q 3.404957592290005 2.5977e-08 au
  Orbit Determination Parameters
   # obs. used (total)      597  
   data-arc span      21413 days (58.63 yr)  
   first obs. used      1960-09-26  
   last obs. used      2019-05-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60712  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:58:08  

Additional Information
 Earth MOID = 1.82668 au 
 Jupiter MOID = 1.56334 au 
 T_jup = 3.192 
[ 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 14.6   n/a MPO493689  

120706 (1997 MD1)          Discovered 1997-Jun-26 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1997 MD1 = 2002 EK20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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