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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457748.5 (2016-Dec-26.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05835708937521886 6.2665e-08  
q 2.926867593327917 2.1114e-07 au
tp 2457621.525756836998
(2016-Aug-21.02575684)
0.00025244 TDB
node 226.1717064810987 2.87e-05 deg
peri 128.1605422322848 5.3767e-05 deg
i 9.330591398634732 6.0616e-06 deg
  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
 Jupiter MOID = 1.99083 au 
 T_jup = 3.196 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.926904404688484E-15 -1.313190533795142E-14 2.230462410700554E-12 -3.270284038862786E-15 5.334099522148592E-13 -4.242915389652985E-15
q -1.313190533795142E-14 4.458216231652241E-14 -5.621225071575931E-12 8.446640074474085E-15 -1.452056875123475E-12 1.521373176921064E-14
tp 2.230462410700554E-12 -5.621225071575931E-12 6.372690575419551E-8 -1.656074506652431E-11 1.148965310470974E-8 5.919139410133119E-12
node -3.270284038862786E-15 8.446640074474085E-15 -1.656074506652431E-11 8.236998583287126E-10 -8.154409156671599E-10 -2.178099855067388E-11
peri 5.334099522148592E-13 -1.452056875123475E-12 1.148965310470974E-8 -8.154409156671599E-10 2.890893953399909E-9 2.245329872267174E-11
i -4.242915389652985E-15 1.521373176921064E-14 5.919139410133119E-12 -2.178099855067388E-11 2.245329872267174E-11 3.674305667427294E-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 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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