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 ]  
70494 (1999 TW66)
Classification: Main-belt Asteroid          SPK-ID: 2070494
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06281380766525878 5.9521e-08  
a 2.669373423922115 1.9527e-08 au
q 2.501699915085117 1.6468e-07 au
i 1.445340119167771 4.2281e-06 deg
node 277.2667427038989 0.00024986 deg
peri 118.9531374350279 0.00025279 deg
M 255.4254279818527 4.1935e-05 deg
tp 2459463.238911323879
(2021-Sep-05.73891132)
0.00018847 TDB
period 1592.987710699767
4.36
1.7479e-05
4.785e-08
d
yr
n .2259904439826842 2.4797e-09 deg/d
Q 2.837046932759111 2.0754e-08 au
  Orbit Determination Parameters
   # obs. used (total)      551  
   data-arc span      7704 days (21.09 yr)  
   first obs. used      1999-10-06  
   last obs. used      2020-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56395  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:05:35  

Additional Information
 Earth MOID = 1.50871 au 
 Jupiter MOID = 2.42511 au 
 T_jup = 3.378 
[ 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 15.7   n/a MPO432257  

70494 (1999 TW66)          Discovered 1999-Oct-08 by Spacewatch at Kitt Peak
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TW66 = 2001 DW61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-27 21:11 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin