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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3009950447124439 8.2272e-08  
a 2.237613442699494 1.4359e-08 AU
q 1.564102884464994 1.8575e-07 AU
i 1.649732947574099 8.0536e-06 deg
node 32.40567389148754 0.00032639 deg
peri 325.900707830352 0.00032598 deg
M 83.19603532624201 1.9403e-05 deg
tp 2456717.962465923748
(2014-Mar-01.46246592)
6.4053e-05 JED
period 1222.576434905761
3.35
1.1768e-05
3.222e-08
d
yr
n .2944601169478207 2.8343e-09 deg/d
Q 2.911124000933994 1.8681e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      275  
   data-arc span      8833 days (24.18 yr)  
   first obs. used      1990-08-22  
   last obs. used      2014-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59164  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:27:01  

Additional Information
 Earth MOID = .56095 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 16.6 mag n/a PDS3 (MPO 2844)  

16474 (1990 QG3)          Discovered 1990-Aug-28 by Holt, H. E. at Palomar (675)
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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