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7191 (1993 MA1)
Classification: Main-belt Asteroid          SPK-ID: 2007191
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1173856621785829 6.0436e-08  
a 2.743154101162368 2.2037e-08 au
q 2.421147140539528 1.7208e-07 au
i 9.270580213568117 6.5887e-06 deg
node 54.95186565190491 3.8669e-05 deg
peri 209.5658745969261 4.9667e-05 deg
M 335.6917365307325 3.3979e-05 deg
tp 2457512.553433667603
(2016-May-04.05343367)
0.00015703 JED
period 1659.486543386259
4.54
1.9997e-05
5.475e-08
d
yr
n .2169345701745814 2.6141e-09 deg/d
Q 3.065161061785208 2.4624e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1204  
   data-arc span      23950 days (65.57 yr)  
   first obs. used      1949-11-21  
   last obs. used      2015-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47674  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 11:56:11  

Additional Information
 Earth MOID = 1.40934 au 
 Jupiter MOID = 1.99611 au 
 T_jup = 3.320 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.4 mag n/a MPO319175  

7191 (1993 MA1)          Discovered 1993-Jun-18 by Holt, H. E. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1993 MA1 = 1986 YJ1 = 1990 VD15 = 1990 VF4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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