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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457581.5 (2016-Jul-12.0) TDB
Reference: JPL 175 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5195899557824525 3.4107e-08  
q 1.142622842484673 8.2828e-08 au
tp 2457153.753661882525
(2015-May-11.25366188)
2.816e-05 TDB
node 167.4276933488747 1.1995e-05 deg
peri 250.180345991239 1.4124e-05 deg
i 20.95444834712562 6.0374e-06 deg
  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
 Jupiter MOID = 2.26873 au 
 T_jup = 3.267 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.163285689938039E-15 -2.821295371464945E-15 -3.029071268616297E-13 1.033728183538242E-14 -9.359589683356118E-14 -1.977428059028543E-15
q -2.821295371464945E-15 6.860443872479904E-15 7.68092834781541E-13 -2.497780137820057E-14 2.331820560945351E-13 6.329895156244185E-15
tp -3.029071268616297E-13 7.68092834781541E-13 7.929583804420682E-10 -3.642867343013878E-11 2.261892216512708E-10 9.308199973445295E-12
node 1.033728183538242E-14 -2.497780137820057E-14 -3.642867343013878E-11 1.438880207717113E-10 -1.419384248462532E-10 1.610290247203404E-12
peri -9.359589683356118E-14 2.331820560945351E-13 2.261892216512708E-10 -1.419384248462532E-10 1.994876775756481E-10 6.338845198348508E-13
i -1.977428059028543E-15 6.329895156244185E-15 9.308199973445295E-12 1.610290247203404E-12 6.338845198348508E-13 3.645076319094699E-11

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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