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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09335811021302243 4.4516e-08  
a 3.112679614502396 1.9497e-08 au
q 2.822085727993853 1.3576e-07 au
i 9.015804751511803 5.2007e-06 deg
node 178.1703482379272 2.5044e-05 deg
peri 31.39856963600471 3.5701e-05 deg
M 127.1560923978935 2.5003e-05 deg
tp 2458492.008357686604
(2019-Jan-08.50835769)		 0.00013833 TDB
period 2005.857418413778
5.49		 1.8846e-05
5.16e-08		 d
yr
n .1794743717550404 1.6863e-09 deg/d
Q 3.403273501010939 2.1317e-08 au
   Orbit Determination Parameters
   # obs. used (total)      771  
   data-arc span      21983 days (60.19 yr)  
   first obs. used      1960-09-26  
   last obs. used      2020-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56593  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:25:42  

Additional Information
 Earth MOID = 1.82168 au 
 Jupiter MOID = 1.56334 au 
 T_jup = 3.193 
[ 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 14.73   n/a E2021B55  

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

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