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154919 (2004 SY29)
Classification: Main-belt Asteroid          SPK-ID: 2154919
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1664731241339198 5.2037e-08  
a 3.099898370217024 3.0031e-08 au
q 2.58384860402935 1.6639e-07 au
i 4.980518965859846 5.5924e-06 deg
node 187.6177973714856 5.1578e-05 deg
peri 178.3613267681453 5.3186e-05 deg
M 318.7683205419822 1.4273e-05 deg
tp 2459228.822196988670
(2021-Jan-14.32219699)
8.0431e-05 TDB
period 1993.515471510527
5.46
2.8969e-05
7.931e-08
d
yr
n .1805855059289912 2.6242e-09 deg/d
Q 3.615948136404699 3.503e-08 au
  Orbit Determination Parameters
   # obs. used (total)      494  
   data-arc span      6322 days (17.31 yr)  
   first obs. used      2002-03-13  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56685  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 09:35:12  

Additional Information
 Earth MOID = 1.58232 au 
 Jupiter MOID = 1.84832 au 
 T_jup = 3.195 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457018.5 (2014-Dec-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1712563362494848 5.22e-08  
q 2.565244036047122 1.6807e-07 au
tp 2457239.865409653383
(2015-Aug-05.36540965)
7.1274e-05 TDB
node 187.8871533410101 5.1434e-05 deg
peri 178.5556237218819 5.2949e-05 deg
i 4.990209173854495 5.609e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      494  
   data-arc span      6322 days (17.31 yr)  
   first obs. used      2002-03-13  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56685  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 09:35:12  

Additional Information
 Jupiter MOID = 1.84832 au 
 T_jup = 3.195 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.724854412497365E-15 -8.684779580466304E-15 1.062805736587323E-12 1.196198515126615E-14 1.662137572891793E-13 1.193901988122566E-15
q -8.684779580466304E-15 2.824860394148946E-14 -3.196443001629284E-12 -3.926771076491038E-14 -5.11575420624565E-13 -3.060003611386904E-15
tp 1.062805736587323E-12 -3.196443001629284E-12 5.079932165772607E-9 -6.225188341467156E-12 9.194207755636259E-10 8.428643732830136E-13
node 1.196198515126615E-14 -3.926771076491038E-14 -6.225188341467156E-12 2.64544371206308E-9 -2.636208656062527E-9 6.969113477046129E-11
peri 1.662137572891793E-13 -5.11575420624565E-13 9.194207755636259E-10 -2.636208656062527E-9 2.803563608323508E-9 -6.932193056173502E-11
i 1.193901988122566E-15 -3.060003611386904E-15 8.428643732830136E-13 6.969113477046129E-11 -6.932193056173502E-11 3.146032016784659E-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 15.3   n/a MPO436784  

154919 (2004 SY29)          Discovered 2004-Sep-17 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

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