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JPL Small-Body Database Browser
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423471 (2005 ST214)
Classification: Main-belt Asteroid          SPK-ID: 2423471
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2596156611531149 9.2431e-08  
a 2.669895839518677 2.2638e-08 au
q 1.976749065932085 2.5785e-07 au
i 11.87906479841039 1.3942e-05 deg
node 327.7046705977544 3.3348e-05 deg
peri 84.70083206147015 5.1818e-05 deg
M 105.4013490436886 3.6021e-05 deg
tp 2458533.965705878144
(2019-Feb-19.46570588)
0.00015521 TDB
period 1593.455372324051
4.36
2.0267e-05
5.549e-08
d
yr
n .2259241182731969 2.8735e-09 deg/d
Q 3.363042613105269 2.8516e-08 au
  Orbit Determination Parameters
   # obs. used (total)      213  
   data-arc span      6652 days (18.21 yr)  
   first obs. used      2001-11-12  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56954  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 08:05:40  

Additional Information
 Earth MOID = 1.02855 au 
 Jupiter MOID = 2.21217 au 
 T_jup = 3.303 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457661.5 (2016-Sep-30.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2587828784981542 9.1639e-08  
q 1.979747979179223 2.5465e-07 au
tp 2456940.461843508401
(2014-Oct-09.96184351)
0.0001438 TDB
node 327.7401664396403 3.3336e-05 deg
peri 84.78756363030378 5.2e-05 deg
i 11.87743572045856 1.3943e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      213  
   data-arc span      6652 days (18.21 yr)  
   first obs. used      2001-11-12  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56954  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 08:05:40  

Additional Information
 Jupiter MOID = 2.21217 au 
 T_jup = 3.303 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.3977459180372E-15 -2.330699234274604E-14 -1.105510837696734E-11 2.390813188200851E-14 -3.078849958013244E-12 -8.427058882258689E-14
q -2.330699234274604E-14 6.484814942637708E-14 3.084962132468699E-11 -6.917062669721662E-14 8.606954996660576E-12 2.364690336055715E-13
tp -1.105510837696734E-11 3.084962132468699E-11 2.067726918008916E-8 -4.89311317191256E-11 5.777484197209033E-9 1.371806849378235E-10
node 2.390813188200851E-14 -6.917062669721662E-14 -4.89311317191256E-11 1.111298516760033E-9 -1.100182879634049E-9 2.702293531653624E-10
peri -3.078849958013244E-12 8.606954996660576E-12 5.777484197209033E-9 -1.100182879634049E-9 2.703999573721419E-9 -2.262128728038314E-10
i -8.427058882258689E-14 2.364690336055715E-13 1.371806849378235E-10 2.702293531653624E-10 -2.262128728038314E-10 1.944028974910736E-10

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO456023  

423471 (2005 ST214)          Discovered 2005-Sep-30 by LONEOS at Anderson Mesa
Reference: Last Updated: 2015-02-04

Alternate Designations
 2005 ST214 = 2001 YN156 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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