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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 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09301987345733695 7.6371e-08  
a 1.938539525318353 1.096e-08 AU
q 1.758216823981193 1.4529e-07 AU
i 22.81956730602921 8.0126e-06 deg
node 161.7075488372323 1.8751e-05 deg
peri 193.4920042472178 5.1715e-05 deg
M 275.818539209554 5.2671e-05 deg
tp 2457031.028367274823
(2015-Jan-08.52836727)
0.00014498 JED
period 985.8490389650618
2.70
8.3605e-06
2.289e-08
d
yr
n .365167470648372 3.0968e-09 deg/d
Q 2.118862226655512 1.1979e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      756  
   data-arc span      8692 days (23.80 yr)  
   first obs. used      1990-08-22  
   last obs. used      2014-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50002  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:34:18  

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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