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 ]  
13720 (1998 QU50)
Classification: Main-belt Asteroid          SPK-ID: 2013720
[ 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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04747722637090422 3.8863e-08  
a 3.199650788016887 2.6913e-08 au
q 3.047740243246367 1.3231e-07 au
i 21.30320355011024 5.5073e-06 deg
node 348.5446956019209 1.144e-05 deg
peri 278.3898171082477 6.4319e-05 deg
M 290.9652166423527 6.4792e-05 deg
tp 2459001.383115574796
(2020-May-31.88311557)		 0.00037652 TDB
period 2090.510241181769
5.72		 2.6375e-05
7.221e-08		 d
yr
n .1722067622096371 2.1727e-09 deg/d
Q 3.351561332787407 2.819e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1188  
   data-arc span      14573 days (39.90 yr)  
   first obs. used      1979-06-15  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48745  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:11:19  

Additional Information
 Earth MOID = 2.1093 au 
 Jupiter MOID = 1.79756 au 
 T_jup = 3.086 
[ 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 13.1   n/a MPO435831  
diameter diameter 12.314 km 0.130 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.081   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13720 (1998 QU50)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QU50 = 1990 EG10 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Oct-14 12:21 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin