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226873 (2004 TU78)
Classification: Main-belt Asteroid          SPK-ID: 2226873
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01909030736959416 5.5008e-08  
a 2.776175117282049 2.8709e-08 au
q 2.723177080981316 1.4597e-07 au
i 5.992254286225031 7.0861e-06 deg
node 6.831747919017208 4.6839e-05 deg
peri 49.81533890210179 0.00018186 deg
M 97.98655072645754 0.00017429 deg
tp 2458540.632537838080
(2019-Feb-26.13253784)
0.00081955 TDB
period 1689.540913022364
4.63
2.6208e-05
7.175e-08
d
yr
n .2130756332831313 3.3052e-09 deg/d
Q 2.829173153582782 2.9257e-08 au
  Orbit Determination Parameters
   # obs. used (total)      266  
   data-arc span      6618 days (18.12 yr)  
   first obs. used      2002-03-16  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50667  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 10:30:58  

Additional Information
 Earth MOID = 1.73557 au 
 Jupiter MOID = 2.21418 au 
 T_jup = 3.327 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457522.5 (2016-May-14.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01828584684975069 5.3704e-08  
q 2.726171223076195 1.4239e-07 au
tp 2456864.404957800770
(2014-Jul-25.90495780)
0.00087896 TDB
node 6.853984123983227 4.6818e-05 deg
peri 52.70488463226292 0.00019269 deg
i 5.993525204196202 7.0868e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      266  
   data-arc span      6618 days (18.12 yr)  
   first obs. used      2002-03-16  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50667  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 10:30:58  

Additional Information
 Jupiter MOID = 2.21418 au 
 T_jup = 3.327 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.884142347615865E-15 -7.510959300460952E-15 -1.842743321168348E-11 4.798526361353204E-15 -3.942424381403377E-12 7.455326973252818E-16
q -7.510959300460952E-15 2.027567469910269E-14 4.407037585900477E-11 -1.218151140100078E-14 9.48412448996606E-12 -1.158851234130756E-15
tp -1.842743321168348E-11 4.407037585900477E-11 7.72577018216496E-7 -1.431812595003825E-10 1.643070325432742E-7 -1.323551120410556E-11
node 4.798526361353204E-15 -1.218151140100078E-14 -1.431812595003825E-10 2.191934198253022E-9 -2.209967854449388E-9 -2.098590424279686E-11
peri -3.942424381403377E-12 9.48412448996606E-12 1.643070325432742E-7 -2.209967854449388E-9 3.713123957247218E-8 1.813473680441728E-11
i 7.455326973252818E-16 -1.158851234130756E-15 -1.323551120410556E-11 -2.098590424279686E-11 1.813473680441728E-11 5.022329417991587E-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 MPO418210  

226873 (2004 TU78)          Discovered 2004-Oct-04 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2004 TU78 = 2002 FS12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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