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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3022013794879145 6.4778e-08  
a 2.236451529299364 1.345e-08 au
q 1.56059279198724 1.458e-07 au
i 1.650198916662933 6.3717e-06 deg
node 32.36402883503442 0.0002625 deg
peri 326.1247294815183 0.00026244 deg
M 259.5899814042871 1.9655e-05 deg
tp 2457941.231440102848
(2017-Jul-06.73144010)
6.9128e-05 JED
period 1221.624297580425
3.34
1.102e-05
3.017e-08
d
yr
n .2946896199699233 2.6584e-09 deg/d
Q 2.912310266611488 1.7515e-08 au
  Orbit Determination Parameters
   # obs. used (total)      372  
   data-arc span      9369 days (25.65 yr)  
   first obs. used      1990-08-22  
   last obs. used      2016-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56705  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:25:08  

Additional Information
 Earth MOID = .55626 au 
 Jupiter MOID = 2.53008 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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