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212215 (2005 GH197)
Classification: Main-belt Asteroid          SPK-ID: 2212215
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04469340100687561 8.6337e-08  
a 2.589867109102494 2.7216e-08 au
q 2.474117139840859 2.3161e-07 au
i 1.83498203508632 5.1299e-06 deg
node 86.93104568288381 0.00029947 deg
peri 49.60398694514212 0.00031438 deg
M 288.804248534663 9.789e-05 deg
tp 2459301.569128011861
(2021-Mar-28.06912801)
0.00041492 TDB
period 1522.350475323506
4.17
2.3997e-05
6.57e-08
d
yr
n .2364764263127375 3.7276e-09 deg/d
Q 2.70561707836413 2.8433e-08 au
  Orbit Determination Parameters
   # obs. used (total)      151  
   data-arc span      5840 days (15.99 yr)  
   first obs. used      2003-11-29  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56243  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 04:02:28  

Additional Information
 Earth MOID = 1.48813 au 
 Jupiter MOID = 2.2871 au 
 T_jup = 3.418 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457051.5 (2015-Jan-29.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04321414049820543 8.7093e-08  
q 2.478509536405179 2.3331e-07 au
tp 2457780.434880122350
(2017-Jan-26.93488012)
0.00042402 TDB
node 86.94537924909066 0.00029965 deg
peri 49.90218188467922 0.00031551 deg
i 1.834875741544375 5.1271e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      151  
   data-arc span      5840 days (15.99 yr)  
   first obs. used      2003-11-29  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56243  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 04:02:28  

Additional Information
 Jupiter MOID = 2.2871 au 
 T_jup = 3.418 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.58525169290807E-15 -2.019968732693207E-14 2.133020076124761E-11 2.306519208726264E-13 5.219465884686356E-12 5.042806645012875E-16
q -2.019968732693207E-14 5.443204850917772E-14 -5.352000602342089E-11 -5.974264954251516E-13 -1.32161683461772E-11 -8.746249171323383E-16
tp 2.133020076124761E-11 -5.352000602342089E-11 1.797892868066252E-7 1.177466536331049E-9 4.201872144633479E-8 8.789299321930996E-12
node 2.306519208726264E-13 -5.974264954251516E-13 1.177466536331049E-9 8.978990419563133E-8 -8.945550255382827E-8 -2.992410131048427E-10
peri 5.219465884686356E-12 -1.32161683461772E-11 4.201872144633479E-8 -8.945550255382827E-8 9.954794668227842E-8 3.011410928076389E-10
i 5.042806645012875E-16 -8.746249171323383E-16 8.789299321930996E-12 -2.992410131048427E-10 3.011410928076389E-10 2.628698021626544E-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 17.0   n/a MPO494173  

212215 (2005 GH197)          Discovered 2005-Apr-10 by Buie, M. W. at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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