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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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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 166 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5205739019038966 3.6925e-08  
a 2.376557802346802 9.4117e-09 au
q 1.139383834078978 8.9509e-08 au
i 20.95217028256533 8.7753e-06 deg
node 167.3829585345774 1.2077e-05 deg
peri 250.1607795323176 1.5632e-05 deg
M 190.4854276455497 1.0322e-05 deg
tp 2459830.623297261259
(2022-Sep-08.12329726)
4.0868e-05 TDB
period 1338.199919118031
3.66
7.9494e-06
2.176e-08
d
yr
n .2690181002531113 1.5981e-09 deg/d
Q 3.613731770614626 1.4311e-08 au
  Orbit Determination Parameters
   # obs. used (total)      691  
   data-arc span      11056 days (30.27 yr)  
   first obs. used      1990-02-04  
   last obs. used      2020-05-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50967  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-22 06:19:51  

Additional Information
 Earth MOID = .312031 au 
 Jupiter MOID = 2.26805 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 16.09   n/a E2021B10  
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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