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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09277290410020404 6.368e-08  
a 1.938737848539009 8.3929e-09 au
q 1.758875508041064 1.2158e-07 au
i 22.8197192018153 7.3599e-06 deg
node 161.7034438954942 1.2536e-05 deg
peri 193.7056042195841 4.262e-05 deg
M 207.7140790740106 4.6289e-05 deg
tp 2458017.594356132228
(2017-Sep-21.09435613)
0.00012816 JED
period 986.000329476134
2.70
6.4027e-06
1.753e-08
d
yr
n .3651114398625703 2.3709e-09 deg/d
Q 2.118600189036955 9.1715e-09 au
  Orbit Determination Parameters
   # obs. used (total)      998  
   data-arc span      9366 days (25.64 yr)  
   first obs. used      1990-08-22  
   last obs. used      2016-04-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50329  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:55:37  

Additional Information
 Earth MOID = .753854 au 
 Jupiter MOID = 3.21728 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 13.7 mag n/a MPO347576  
rotation period rot_per 3.6873 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 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.]
[Warner, B.D. (2015) Minor Planet Bul. 42, 54-60.]
[Stephens, R.D. (2016) http://www.planetarysciences.org/]

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