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216477 (1999 TD25)
Classification: Main-belt Asteroid          SPK-ID: 2216477
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2008519461022781 4.4555e-08  
a 2.306462940935658 7.6256e-09 au
q 1.843205370635947 1.0296e-07 au
i 1.343607477157351 4.2836e-06 deg
node 283.7631746092738 0.00026893 deg
peri 140.5691764632225 0.00026945 deg
M 44.0845011049739 1.6285e-05 deg
tp 2459239.824323745503
(2021-Jan-25.32432375)
5.7749e-05 TDB
period 1279.43476818104
3.50
6.3451e-06
1.737e-08
d
yr
n .2813742513124046 1.3954e-09 deg/d
Q 2.769720511235368 9.1572e-09 au
  Orbit Determination Parameters
   # obs. used (total)      365  
   data-arc span      7806 days (21.37 yr)  
   first obs. used      1999-09-30  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50405  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:58  

Additional Information
 Earth MOID = .856568 au 
 Jupiter MOID = 2.54545 au 
 T_jup = 3.560 
[ 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 17.38   n/a E2021B55  

216477 (1999 TD25)          Discovered 1999-Oct-03 by LINEAR at Socorro
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1935-Jul-10 22:29 00:01 Iris 0.0428614865135949 0.0428593568927637 0.0428636174625066 1.95745406251384 1.95745399399433 2427994.436717808 1.48021668135049 471.00787368607 60.964749920623 79.2684715835436 103133.849661959 T 14 CATAB v2.0f-lin.ifort 2021-Apr-13 23:54:58 2021-Apr-13 23:54

Alternate Designations
 1999 TD25 = 2004 CO84 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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