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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
20406 (1998 QJ13)
Classification: Main-belt Asteroid          SPK-ID: 2020406
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .153131852237403 3.3058e-08  
a 2.929291230255256 1.6978e-08 au
q 2.480723438423488 9.6443e-08 au
i 7.303097348973444 3.6011e-06 deg
node 128.8086526574241 3.7581e-05 deg
peri 129.3753050065266 4.0663e-05 deg
M 93.98552058696612 1.6115e-05 deg
tp 2458122.419858284362
(2018-Jan-03.91985828)
8.0965e-05 TDB
period 1831.227299085659
5.01
1.592e-05
4.359e-08
d
yr
n .1965894677191356 1.7091e-09 deg/d
Q 3.377859022087024 1.9577e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1528  
   data-arc span      9136 days (25.01 yr)  
   first obs. used      1994-11-28  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53324  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:44:04  

Additional Information
 Earth MOID = 1.47295 au 
 Jupiter MOID = 1.73242 au 
 T_jup = 3.247 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6   n/a MPO416925  
diameter diameter 5.270 km 1.370 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.211   0.128 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20406 (1998 QJ13)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QJ13 = 1994 WJ7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-19 19:01 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin