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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09277916329234906 6.5804e-08  
a 1.938672114325325 9.5337e-09 au
q 1.758803737660012 1.269e-07 au
i 22.82087289611991 7.5489e-06 deg
node 161.7046235417074 1.8116e-05 deg
peri 193.5524276878048 4.8889e-05 deg
M 134.8712853799641 4.8386e-05 deg
tp 2457031.121198459033
(2015-Jan-08.62119846)
0.00013182 JED
period 985.9501833924282
2.70
7.2728e-06
1.991e-08
d
yr
n .3651300096738384 2.6934e-09 deg/d
Q 2.118540490990638 1.0418e-08 au
  Orbit Determination Parameters
   # obs. used (total)      828  
   data-arc span      9247 days (25.32 yr)  
   first obs. used      1990-08-22  
   last obs. used      2015-12-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51974  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 12:59:58  

Additional Information
 Earth MOID = .752629 au 
 Jupiter MOID = 3.21748 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. 2015-December); 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.]

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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