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172288 (2002 TO156)
Classification: Main-belt Asteroid          SPK-ID: 2172288
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03873385304899191 4.9857e-08  
a 2.73053036126246 2.2312e-08 au
q 2.62476639950351 1.4001e-07 au
i 5.432434279739846 6.0282e-06 deg
node 229.3751478204417 4.4545e-05 deg
peri 133.1668307237624 8.9094e-05 deg
M 324.1504565588826 7.9153e-05 deg
tp 2459164.615677547446
(2020-Nov-11.11567755)
0.00036341 TDB
period 1648.044528492299
4.51
2.02e-05
5.53e-08
d
yr
n .218440699736034 2.6774e-09 deg/d
Q 2.836294323021411 2.3176e-08 au
  Orbit Determination Parameters
   # obs. used (total)      300  
   data-arc span      7549 days (20.67 yr)  
   first obs. used      1998-11-27  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58348  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:46:10  

Additional Information
 Earth MOID = 1.62606 au 
 Jupiter MOID = 2.33655 au 
 T_jup = 3.347 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457384.5 (2015-Dec-28.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04091775468341342 5.0238e-08  
q 2.618763235887184 1.4127e-07 au
tp 2457520.182250017166
(2016-May-11.68225002)
0.00033402 TDB
node 229.4392155298469 4.447e-05 deg
peri 134.0004887593606 8.5388e-05 deg
i 5.436622170351955 6.034e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      300  
   data-arc span      7549 days (20.67 yr)  
   first obs. used      1998-11-27  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58348  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:46:10  

Additional Information
 Jupiter MOID = 2.33655 au 
 T_jup = 3.347 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.523831531149038E-15 -7.019244710343049E-15 3.889427309094844E-12 -1.600331550084499E-14 9.383251469100552E-13 9.126822027905235E-16
q -7.019244710343049E-15 1.995617816850809E-14 -7.313721953978601E-12 3.694128437820708E-14 -1.856251525876191E-12 -1.622298318896067E-15
tp 3.889427309094844E-12 -7.313721953978601E-12 1.115663223190651E-7 -1.737201641572477E-10 2.43550953340536E-8 1.196018167013781E-11
node -1.600331550084499E-14 3.694128437820708E-14 -1.737201641572477E-10 1.977618458688023E-9 -2.006109525060273E-9 1.020388641812037E-11
peri 9.383251469100552E-13 -1.856251525876191E-12 2.43550953340536E-8 -2.006109525060273E-9 7.29109872271147E-9 -7.524204806916247E-12
i 9.126822027905235E-16 -1.622298318896067E-15 1.196018167013781E-11 1.020388641812037E-11 -7.524204806916247E-12 3.640954204065904E-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 16.1   n/a MPO436856  

172288 (2002 TO156)          Discovered 2002-Oct-05 by NEAT at Palomar
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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