Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
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 ]  
109398 (2001 QW178)
Classification: Main-belt Asteroid          SPK-ID: 2109398
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2012333015055255 4.6992e-08  
a 2.601339229892098 1.1316e-08 au
q 2.07786314832507 1.2032e-07 au
i 18.24988013981115 5.6563e-06 deg
node 29.08925981251616 1.4124e-05 deg
peri 62.81390177217198 1.9071e-05 deg
M 111.1127321166283 1.1821e-05 deg
tp 2458527.506428527626
(2019-Feb-13.00642853)
4.9553e-05 TDB
period 1532.476814190156
4.20
9.9994e-06
2.738e-08
d
yr
n .23491383143062 1.5328e-09 deg/d
Q 3.124815311459125 1.3593e-08 au
  Orbit Determination Parameters
   # obs. used (total)      816  
   data-arc span      7693 days (21.06 yr)  
   first obs. used      1999-04-06  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48711  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:04:19  

Additional Information
 Earth MOID = 1.15469 au 
 Jupiter MOID = 2.40857 au 
 T_jup = 3.316 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7   n/a MPO469118  
diameter diameter 5.403 km 1.431 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.084   0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

109398 (2001 QW178)          Discovered 2001-Aug-27 by NEAT at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-15 04:43 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin