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 ]  
71119 (1999 XJ161)
Classification: Main-belt Asteroid          SPK-ID: 2071119
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1899526372766819 5.0156e-08  
a 2.666117697003921 1.7904e-08 au
q 2.159681609167993 1.3382e-07 au
i 12.56367545761744 5.8375e-06 deg
node 320.0104749626716 2.2592e-05 deg
peri 29.97233228421667 2.6726e-05 deg
M 253.1429096364566 1.7197e-05 deg
tp 2459072.474187010171
(2020-Aug-10.97418701)
7.8898e-05 TDB
period 1590.074245383257
4.35
1.6017e-05
4.385e-08
d
yr
n .2264045223329989 2.2805e-09 deg/d
Q 3.17255378483985 2.1304e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1202  
   data-arc span      7717 days (21.13 yr)  
   first obs. used      1998-06-26  
   last obs. used      2019-08-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47813  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:39:42  

Additional Information
 Earth MOID = 1.1604 au 
 Jupiter MOID = 2.26489 au 
 T_jup = 3.324 
[ 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 13.6   n/a MPO436280  
diameter diameter 5.895 km 0.279 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.202   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71119 (1999 XJ161)          Discovered 1999-Dec-12 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XJ161 = 1998 RQ20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Oct-21 01:30 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin