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21277 (1996 TO5)
Classification: Amor [NEO]          SPK-ID: 2021277
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 175 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .520535028578055 3.4221e-08  
a 2.376786448592174 9.362e-09 au
q 1.139585846650313 8.3111e-08 au
i 20.95212416880352 6.0372e-06 deg
node 167.3804992986343 1.2009e-05 deg
peri 250.1460034470082 1.4121e-05 deg
M 243.2497866708674 9.5368e-06 deg
tp 2459830.549092816097
(2022-Sep-08.04909282)
3.7291e-05 TDB
period 1338.393044073387
3.66
7.9078e-06
2.165e-08
d
yr
n .2689792819785908 1.5892e-09 deg/d
Q 3.613987050534035 1.4235e-08 au
  Orbit Determination Parameters
   # obs. used (total)      717  
   data-arc span      11510 days (31.51 yr)  
   first obs. used      1990-02-04  
   last obs. used      2021-08-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52164  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:41:33  

Additional Information
 Earth MOID = .312564 au 
 Jupiter MOID = 2.26873 au 
 T_jup = 3.267 
[ 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 16.12   n/a MPO636383  
rotation period rot_per 7.70 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Warner, B.D.; Stephens, R.D. (2019) Minor Planet Bull. 46, 144-152.]

21277 (1996 TO5)          Discovered 1996-Oct-09 by JPL/GEODSS NEAT at Haleakala
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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