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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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1176353541898391 6.1618e-08  
a 2.745636494774489 2.2779e-08 AU
q 2.422652573235144 1.7472e-07 AU
i 9.267708829642473 6.8486e-06 deg
node 55.00458135338596 3.8797e-05 deg
peri 209.0740286369034 4.9786e-05 deg
M 249.4254565538677 3.3543e-05 deg
tp 2457510.905845070663
(2016-May-02.40584507)
0.00015656 JED
period 1661.739659951231
4.55
2.068e-05
5.662e-08
d
yr
n .2166404333218871 2.6961e-09 deg/d
Q 3.068620416313834 2.5459e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1164  
   data-arc span      23869 days (65.35 yr)  
   first obs. used      1949-11-21  
   last obs. used      2015-03-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47162  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:27:35  

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 12.4 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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