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 ]  
249955 (2001 TJ238)
Classification: Main-belt Asteroid          SPK-ID: 2249955
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1879450055062449 4.6619e-08  
a 2.734836253173255 1.841e-08 au
q 2.220837438511929 1.3119e-07 au
i 9.573443842584295 4.8916e-06 deg
node 71.00785472717591 2.9748e-05 deg
peri 275.0231577168316 3.3068e-05 deg
M 56.95468532348164 1.2666e-05 deg
tp 2458739.150077729519
(2019-Sep-12.65007773)
5.805e-05 TDB
period 1651.94437442678
4.52
1.668e-05
4.567e-08
d
yr
n .2179250134405518 2.2005e-09 deg/d
Q 3.24883506783458 2.187e-08 au
  Orbit Determination Parameters
   # obs. used (total)      311  
   data-arc span      6603 days (18.08 yr)  
   first obs. used      2001-10-15  
   last obs. used      2019-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56256  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 16:46:34  

Additional Information
 Earth MOID = 1.23909 au 
 Jupiter MOID = 2.25115 au 
 T_jup = 3.307 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO494363  
diameter diameter 3.508 km 0.148 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249955 (2001 TJ238)          Discovered 2001-Oct-15 by NEAT at Palomar
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

Alternate Designations
 2001 TJ238 = 2006 VT70 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-09 03:12 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin