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 ]  
74911 (1999 TZ139)
Classification: Main-belt Asteroid          SPK-ID: 2074911
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09619239762424225 3.3499e-08  
a 2.3576303369878 9.582e-09 au
q 2.130844222161294 7.9531e-08 au
i 6.704308917087967 4.808e-06 deg
node 24.88971553399896 3.2666e-05 deg
peri 242.8690889636503 4.1522e-05 deg
M 4.359211841947947 2.5253e-05 deg
tp 2458984.489036496304
(2020-May-14.98903650)
9.2757e-05 TDB
period 1322.24518337585
3.62
8.0609e-06
2.207e-08
d
yr
n .272264179538077 1.6598e-09 deg/d
Q 2.584416451814307 1.0504e-08 au
  Orbit Determination Parameters
   # obs. used (total)      971  
   data-arc span      8062 days (22.07 yr)  
   first obs. used      1998-05-22  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53341  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:51:28  

Additional Information
 Earth MOID = 1.12522 au 
 Jupiter MOID = 2.48327 au 
 T_jup = 3.538 
[ 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 15.5   n/a MPO436307  

74911 (1999 TZ139)          Discovered 1999-Oct-06 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-05 23:40 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin