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16474 (1990 QG3)
Classification: Mars-crossing Asteroid          SPK-ID: 2016474
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3018412831184055 7.4427e-08  
a 2.237265482863188 1.3682e-08 au
q 1.561966398839244 1.6668e-07 au
i 1.650299698177067 6.5008e-06 deg
node 32.3641377392245 0.00032408 deg
peri 326.0744613654585 0.00032367 deg
M 200.7189135292307 1.9836e-05 deg
tp 2457941.299671220789
(2017-Jul-06.79967122)
7.093e-05 JED
period 1222.291271068224
3.35
1.1213e-05
3.07e-08
d
yr
n .2945288152842467 2.7018e-09 deg/d
Q 2.912564566887132 1.7812e-08 au
  Orbit Determination Parameters
   # obs. used (total)      351  
   data-arc span      8997 days (24.63 yr)  
   first obs. used      1990-08-22  
   last obs. used      2015-04-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .564  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:26:29  

Additional Information
 Earth MOID = .556781 au 
 Jupiter MOID = 2.52977 au 
 T_jup = 3.576 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.7 mag n/a MPO337398  

16474 (1990 QG3)          Discovered 1990-Aug-28 by Holt, H. E. at Palomar
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 QG3 = 1995 BM8 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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