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66779 (1999 TS221)
Classification: Main-belt Asteroid          SPK-ID: 2066779
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1354835547123444 3.6732e-08  
a 2.76193640324115 1.5363e-08 au
q 2.387739441440612 1.0208e-07 au
i 10.26552372779606 4.142e-06 deg
node 118.4189852200367 2.6282e-05 deg
peri 182.5015511377119 3.1409e-05 deg
M 299.0557424490398 1.8932e-05 deg
tp 2459484.324073014495
(2021-Sep-26.82407301)
8.8947e-05 TDB
period 1676.559373945619
4.59
1.3988e-05
3.83e-08
d
yr
n .2147254702663915 1.7916e-09 deg/d
Q 3.136133365041688 1.7444e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1299  
   data-arc span      7779 days (21.30 yr)  
   first obs. used      1999-10-02  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54079  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:24:54  

Additional Information
 Earth MOID = 1.37022 au 
 Jupiter MOID = 2.08832 au 
 T_jup = 3.305 
[ 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 14.47   n/a E2021B10  

66779 (1999 TS221)          Discovered 1999-Oct-02 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TS221 = 2001 AA39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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