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JPL Small-Body Database Browser
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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 160 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5205880912954529 3.8616e-08  
a 2.376601474639582 1.0039e-08 au
q 1.139371049187003 9.3884e-08 au
i 20.95225103846477 1.1702e-05 deg
node 167.3841380483033 1.2647e-05 deg
peri 250.17294829 1.8894e-05 deg
M 136.6468595244242 1.2953e-05 deg
tp 2458492.539286558466
(2019-Jan-09.03928656)
4.6175e-05 TDB
period 1338.236805993092
3.66
8.4796e-06
2.322e-08
d
yr
n .269010685095339 1.7045e-09 deg/d
Q 3.613831900092161 1.5266e-08 au
  Orbit Determination Parameters
   # obs. used (total)      641  
   data-arc span      10610 days (29.05 yr)  
   first obs. used      1990-02-04  
   last obs. used      2019-02-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51263  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Feb-25 06:46:25  

Additional Information
 Earth MOID = .313031 au 
 Jupiter MOID = 2.2671 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 16.1   n/a MPO452470  
rotation period rot_per 7.70 h n/a LCDB (Rev. 2019-August); 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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