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 ]  
13835 (1999 XJ20)
Classification: Main-belt Asteroid          SPK-ID: 2013835
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05563128030632301 3.1975e-08  
a 2.845152956904108 1.131e-08 au
q 2.686873455244212 9.2344e-08 au
i 3.046980201750465 3.3846e-06 deg
node 68.36078395240082 7.5592e-05 deg
peri 248.5470590007507 8.5111e-05 deg
M 258.9932071594106 4.0952e-05 deg
tp 2459888.318585744422
(2022-Nov-04.81858574)
0.0002001 TDB
period 1752.898848569744
4.80
1.0452e-05
2.862e-08
d
yr
n .2053740866415296 1.2246e-09 deg/d
Q 3.003432458564004 1.194e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2551  
   data-arc span      16674 days (45.65 yr)  
   first obs. used      1975-11-02  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46298  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 03:22:35  

Additional Information
 Earth MOID = 1.6745 au 
 Jupiter MOID = 2.15241 au 
 T_jup = 3.303 
[ 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 13.39   n/a E2021B10  
diameter diameter 5.477 km 0.383 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.309   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13835 (1999 XJ20)          Discovered 1999-Dec-05 by LINEAR at Socorro
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XJ20 = 1975 VC4 = 1982 KH = 1985 YS1 = 1997 ET58 = 1998 MP29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-25 02:05 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin