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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09301977089036566 8.5868e-08  
a 1.938539526234517 1.2005e-08 AU
q 1.758217023642264 1.6341e-07 AU
i 22.81956547907001 8.8222e-06 deg
node 161.7075249005755 1.9361e-05 deg
peri 193.4920829594397 5.2806e-05 deg
M 275.818482514152 5.5263e-05 deg
tp 2457031.028522696878
(2015-Jan-08.52852270)
0.0001524 JED
period 985.8490396639381
2.70
9.1581e-06
2.507e-08
d
yr
n .3651674703895019 3.3922e-09 deg/d
Q 2.11886202882677 1.3122e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      750  
   data-arc span      8553 days (23.42 yr)  
   first obs. used      1990-08-22  
   last obs. used      2014-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52741  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Feb-19 18:04:27  

Additional Information
 Earth MOID = .752682 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. 2013-Sep-12) 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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