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 ]  
173828 (2001 TX21)
Classification: Main-belt Asteroid          SPK-ID: 2173828
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2059573941424171 4.5681e-08  
a 2.968870599204592 2.5576e-08 au
q 2.357409747046378 1.3996e-07 au
i 9.554986327622059 6.5777e-06 deg
node 129.6796260098662 3.7281e-05 deg
peri 282.0363410124108 4.3336e-05 deg
M 214.0346507529047 2.2564e-05 deg
tp 2459758.087150935169
(2022-Jun-27.58715094)
0.00012359 TDB
period 1868.466562396062
5.12
2.4144e-05
6.61e-08
d
yr
n .1926713633763654 2.4897e-09 deg/d
Q 3.580331451362806 3.0843e-08 au
  Orbit Determination Parameters
   # obs. used (total)      338  
   data-arc span      6486 days (17.76 yr)  
   first obs. used      2001-09-25  
   last obs. used      2019-06-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58709  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 17:09:46  

Additional Information
 Earth MOID = 1.39094 au 
 Jupiter MOID = 1.88768 au 
 T_jup = 3.210 
[ 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 15.6   n/a MPO436863  

173828 (2001 TX21)          Discovered 2001-Oct-11 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 2001 TX21 = 2006 SB108 
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-11 17:46 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin