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312985 (1999 TF45)
Classification: Main-belt Asteroid          SPK-ID: 2312985
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1076932875942547 8.6087e-08  
a 3.005835728756327 3.2022e-08 au
q 2.682127397158285 2.7499e-07 au
i 11.23197448259234 9.0343e-06 deg
node 12.65066015031157 3.6748e-05 deg
peri 296.0972867542619 5.2792e-05 deg
M 50.34156859423796 3.8545e-05 deg
tp 2458734.322995512075
(2019-Sep-07.82299551)
0.00020288 TDB
period 1903.471113266439
5.21
3.0417e-05
8.328e-08
d
yr
n .1891281656395744 3.0222e-09 deg/d
Q 3.329544060354368 3.547e-08 au
  Orbit Determination Parameters
   # obs. used (total)      147  
   data-arc span      7212 days (19.75 yr)  
   first obs. used      1999-10-03  
   last obs. used      2019-07-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58139  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:02:36  

Additional Information
 Earth MOID = 1.692 au 
 Jupiter MOID = 2.03318 au 
 T_jup = 3.213 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO440463  

312985 (1999 TF45)          Discovered 1999-Oct-03 by Spacewatch at Kitt Peak
Reference: 20120207/Numbers.arcLast Updated: 2012-02-09

Alternate Designations
 1999 TF45 = 2004 TA179 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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