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 ]  
129797 (1999 JW123)
Classification: Main-belt Asteroid          SPK-ID: 2129797
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1500823544447776 6.4273e-08  
a 2.33356973104685 1.2794e-08 au
q 1.983342091550272 1.544e-07 au
i 3.135097121677286 6.2571e-06 deg
node 31.96312086362213 9.8396e-05 deg
peri 186.2468357679396 0.00010138 deg
M 331.8851704747933 2.8943e-05 deg
tp 2459102.186325688702
(2020-Sep-09.68632569)
0.00010524 TDB
period 1302.055814178504
3.56
1.0708e-05
2.932e-08
d
yr
n .2764858434483716 2.2739e-09 deg/d
Q 2.683797370543428 1.4715e-08 au
  Orbit Determination Parameters
   # obs. used (total)      416  
   data-arc span      7576 days (20.74 yr)  
   first obs. used      1999-05-07  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58346  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 07:05:56  

Additional Information
 Earth MOID = .975866 au 
 Jupiter MOID = 2.28682 au 
 T_jup = 3.552 
[ 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 16.4   n/a MPO453776  

129797 (1999 JW123)          Discovered 1999-May-14 by LINEAR at Socorro
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

Alternate Designations
 1999 JW123 = 2002 AA99 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-31 01:23 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin