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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1176353733783523 7.0941e-08  
a 2.745636501284397 2.6866e-08 AU
q 2.422652526294574 1.9387e-07 AU
i 9.267715031488869 9.05e-06 deg
node 55.0045758396314 3.9269e-05 deg
peri 209.0740297078129 5.2604e-05 deg
M 249.4254586479391 3.5309e-05 deg
tp 2457510.905837219807
(2016-May-02.40583722)
0.00016345 JED
period 1661.739665861212
4.55
2.439e-05
6.678e-08
d
yr
n .2166404325514049 3.1797e-09 deg/d
Q 3.06862047627422 3.0026e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1011  
   data-arc span      23492 days (64.32 yr)  
   first obs. used      1949-11-21  
   last obs. used      2014-03-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .45879  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:36:35  

Additional Information
 Earth MOID = 1.41354 AU 
 T_jup = 3.319 
[ 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 12.3 mag n/a MPO250280  

7191 (1993 MA1)          Discovered 1993-Jun-18 by Holt, H. E. at Palomar (675)
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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