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216765 (2005 TG99)
Classification: Main-belt Asteroid          SPK-ID: 2216765
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05901862404256013 6.2249e-08  
a 3.111358939076829 3.1674e-08 au
q 2.927730815589995 2.1077e-07 au
i 9.322556926359468 6.0579e-06 deg
node 226.0833610152189 2.873e-05 deg
peri 125.669351527493 5.382e-05 deg
M 321.9590521188507 4.6229e-05 deg
tp 2459608.322666096836
(2022-Jan-28.82266610)
0.00025825 TDB
period 2004.580959262813
5.49
3.0611e-05
8.381e-08
d
yr
n .1795886558417628 2.7424e-09 deg/d
Q 3.294987062563663 3.3544e-08 au
  Orbit Determination Parameters
   # obs. used (total)      335  
   data-arc span      7584 days (20.76 yr)  
   first obs. used      2000-11-01  
   last obs. used      2021-08-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59688  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 03:29:20  

Additional Information
 Earth MOID = 1.935 au 
 Jupiter MOID = 1.99083 au 
 T_jup = 3.196 
[ 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 15.43   n/a MPO638141  
diameter diameter 5.067 km 0.442 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

216765 (2005 TG99)          Discovered 2005-Oct-07 by CSS at Catalina
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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