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212787 (2007 TF221)
Classification: Main-belt Asteroid          SPK-ID: 2212787
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 .2021718698982041 4.7983e-08  
a 2.345484861971002 1.4247e-08 au
q 1.871293801608393 1.143e-07 au
i 6.170569354041402 8.1828e-06 deg
node 14.94703851286117 3.9339e-05 deg
peri 63.97033514204202 4.4238e-05 deg
M 125.6411037928904 1.8812e-05 deg
tp 2458542.593697897399
(2019-Feb-28.09369790)
6.706e-05 TDB
period 1312.040914800244
3.59
1.1954e-05
3.273e-08
d
yr
n .2743816872927392 2.4999e-09 deg/d
Q 2.81967592233361 1.7127e-08 au
  Orbit Determination Parameters
   # obs. used (total)      195  
   data-arc span      7167 days (19.62 yr)  
   first obs. used      2000-09-29  
   last obs. used      2020-05-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57696  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 03:58:47  

Additional Information
 Earth MOID = .896164 au 
 Jupiter MOID = 2.46388 au 
 T_jup = 3.526 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457870.5 (2017-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2021879329367795 4.7853e-08  
q 1.871383532895402 1.1387e-07 au
tp 2457230.966171518124
(2015-Jul-27.46617152)
6.4363e-05 TDB
node 14.95701759298303 3.9334e-05 deg
peri 64.11132080000644 4.4245e-05 deg
i 6.170925946561676 8.1832e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      195  
   data-arc span      7167 days (19.62 yr)  
   first obs. used      2000-09-29  
   last obs. used      2020-05-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57696  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 03:58:47  

Additional Information
 Jupiter MOID = 2.46388 au 
 T_jup = 3.526 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.289911528219889E-15 -5.422256870728033E-15 -1.769455689181258E-12 2.100470159547384E-14 -5.550561412287212E-13 -4.225055771393669E-15
q -5.422256870728033E-15 1.296628610789217E-14 4.253521850040607E-12 -5.17686555588001E-14 1.351938632131671E-12 1.093730399862866E-14
tp -1.769455689181258E-12 4.253521850040607E-12 4.142653522576515E-9 -3.633358880169866E-11 1.308036388953515E-9 6.037663412967987E-12
node 2.100470159547384E-14 -5.17686555588001E-14 -3.633358880169866E-11 1.547147282807127E-9 -1.549025595889703E-9 6.169782817190019E-11
peri -5.550561412287212E-13 1.351938632131671E-12 1.308036388953515E-9 -1.549025595889703E-9 1.957608270634436E-9 -5.943478666475013E-11
i -4.225055771393669E-15 1.093730399862866E-14 6.037663412967987E-12 6.169782817190019E-11 -5.943478666475013E-11 6.69642922398136E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.7   n/a MPO459951  

212787 (2007 TF221)          Discovered 2007-Oct-09 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

Alternate Designations
 2007 TF221 = 2000 SP326 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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