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 ]  
129655 (1998 QT15)
Classification: Main-belt Asteroid          SPK-ID: 2129655
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2087251843340991 5.5203e-08  
a 2.581835405018506 1.1484e-08 au
q 2.042941334185715 1.3844e-07 au
i 9.754130920460529 5.2049e-06 deg
node 305.9871887343576 2.9856e-05 deg
peri 75.61148593502587 3.4142e-05 deg
M 69.28677266538503 1.2735e-05 deg
tp 2458708.865374013238
(2019-Aug-13.36537401)
5.395e-05 TDB
period 1515.274291418762
4.15
1.011e-05
2.768e-08
d
yr
n .2375807482768875 1.5851e-09 deg/d
Q 3.120729475851297 1.388e-08 au
  Orbit Determination Parameters
   # obs. used (total)      872  
   data-arc span      7835 days (21.45 yr)  
   first obs. used      1998-08-20  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48773  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 07:05:17  

Additional Information
 Earth MOID = 1.07089 au 
 Jupiter MOID = 2.46289 au 
 T_jup = 3.373 
[ 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 MPO502832  

129655 (1998 QT15)          Discovered 1998-Aug-20 by LONEOS at Anderson Mesa
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

[ show close-approach data ]
Alternate Designations
 1998 QT15 = 2002 ND26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-27 13:35 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin