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6394 (1990 QM2)
Classification: Inner Main-belt Asteroid          SPK-ID: 2006394
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09298146345963477 7.4549e-08  
a 1.938541812491291 1.0794e-08 AU
q 1.758293357788158 1.4209e-07 AU
i 22.82048636932909 7.9374e-06 deg
node 161.7050487740791 1.8699e-05 deg
peri 193.4692220853041 5.1321e-05 deg
M 348.8709667020482 5.219e-05 deg
tp 2457030.976572773503
(2015-Jan-08.47657277)
0.00014302 JED
period 985.850783686703
2.70
8.2342e-06
2.254e-08
d
yr
n .3651668243887157 3.05e-09 deg/d
Q 2.118790267194424 1.1798e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      771  
   data-arc span      8739 days (23.93 yr)  
   first obs. used      1990-08-22  
   last obs. used      2014-07-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49693  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:01:41  

Additional Information
 Earth MOID = .754427 AU 
 T_jup = 3.804 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6 mag n/a MPO253408  
rotation period rot_per 3.6873 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Warner, B.D. (2008) Minor Planet Bul. 35, 163-167.]
[Warner, B.D. (2011) Minor Planet Bul. 38, 190-195.]
[Warner, B.D. (2013) Minor Planet Bul. 40, 137-145.]

6394 (1990 QM2)          Discovered 1990-Aug-22 by Holt, H. E. at Palomar (675)
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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