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 ]  
74898 (1999 TL123)
Classification: Main-belt Asteroid          SPK-ID: 2074898
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1411767209108252 3.6452e-08  
a 2.382400944191282 9.2558e-09 au
q 2.046061390995503 8.9e-08 au
i 6.787640174023753 3.8936e-06 deg
node 162.8218719310714 2.9328e-05 deg
peri 204.4010111090657 3.2176e-05 deg
M 229.2462165158411 1.56e-05 deg
tp 2459488.334453563231
(2021-Sep-30.83445356)
5.9908e-05 TDB
period 1343.138214459697
3.68
7.8273e-06
2.143e-08
d
yr
n .2680290055962832 1.562e-09 deg/d
Q 2.718740497387061 1.0563e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1515  
   data-arc span      8090 days (22.15 yr)  
   first obs. used      1998-04-24  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48984  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:51:07  

Additional Information
 Earth MOID = 1.04622 au 
 Jupiter MOID = 2.74019 au 
 T_jup = 3.514 
[ 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 15.0   n/a MPO333438  

74898 (1999 TL123)          Discovered 1999-Oct-04 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-07 22:10 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin