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 ]  
129738 (1999 BT)
Classification: Main-belt Asteroid          SPK-ID: 2129738
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1873759729718833 4.6706e-08  
a 2.739981759113574 1.619e-08 au
q 2.226575011074455 1.3198e-07 au
i 11.38859280785456 6.2772e-06 deg
node 284.7499775609425 2.692e-05 deg
peri 91.3345891295054 3.2728e-05 deg
M 337.0967561557754 1.7021e-05 deg
tp 2459105.893646392594
(2020-Sep-13.39364639)
7.8564e-05 TDB
period 1656.608686498409
4.54
1.4682e-05
4.02e-08
d
yr
n .2173114284224452 1.926e-09 deg/d
Q 3.253388507152692 1.9223e-08 au
  Orbit Determination Parameters
   # obs. used (total)      828  
   data-arc span      7925 days (21.70 yr)  
   first obs. used      1999-01-10  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53232  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 20:29:24  

Additional Information
 Earth MOID = 1.26309 au 
 Jupiter MOID = 2.38741 au 
 T_jup = 3.297 
[ 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 14.5   n/a MPO436628  

129738 (1999 BT)          Discovered 1999-Jan-16 by Korlevic, K. at Visnjan
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

[ show close-approach data ]
Alternate Designations
 1999 BT = 2002 TU295 
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-31 01:30 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin