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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .117635357290644 6.2831e-08  
a 2.745636495852373 2.3301e-08 AU
q 2.422652565672547 1.7717e-07 AU
i 9.267709290093608 7.2074e-06 deg
node 55.00458111419179 3.8803e-05 deg
peri 209.0740274506433 5.0061e-05 deg
M 249.4254575448015 3.3719e-05 deg
tp 2457510.905840797132
(2016-May-02.40584080)
0.00015723 JED
period 1661.739660929782
4.55
2.1153e-05
5.791e-08
d
yr
n .2166404331943138 2.7578e-09 deg/d
Q 3.068620426032198 2.6042e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1116  
   data-arc span      23832 days (65.25 yr)  
   first obs. used      1949-11-21  
   last obs. used      2015-02-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47028  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:07:40  

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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