Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
16474 (1990 QG3)
Classification: Mars-crossing Asteroid          SPK-ID: 2016474
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3009950507261535 8.4071e-08  
a 2.237613441921176 1.4535e-08 AU
q 1.564102870464589 1.9007e-07 AU
i 1.649735041888223 8.2307e-06 deg
node 32.40563155162214 0.00032819 deg
peri 325.9007502587633 0.00032777 deg
M 83.19603604054095 1.9498e-05 deg
tp 2456717.962463645371
(2014-Mar-01.46246365)
6.4342e-05 JED
period 1222.57643426788
3.35
1.1913e-05
3.262e-08
d
yr
n .2944601171014556 2.8692e-09 deg/d
Q 2.911124013377763 1.891e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      272  
   data-arc span      8335 days (22.82 yr)  
   first obs. used      1990-08-22  
   last obs. used      2013-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59146  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 21:34:44  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Oct-31 09:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin