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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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05901862400213616 6.2259e-08  
a 3.111358946680553 3.4966e-08 au
q 2.927730822870731 2.1112e-07 au
i 9.322555588554552 6.7556e-06 deg
node 226.0833618809237 2.8817e-05 deg
peri 125.669362696713 5.9065e-05 deg
M 321.9590382568917 5.3929e-05 deg
tp 2459608.322744060608
(2022-Jan-28.82274406)
0.00030178 TDB
period 2004.580966611184
5.49
3.3792e-05
9.252e-08
d
yr
n .1795886551834287 3.0274e-09 deg/d
Q 3.294987070490375 3.703e-08 au
  Orbit Determination Parameters
   # obs. used (total)      319  
   data-arc span      7525 days (20.60 yr)  
   first obs. used      2000-11-01  
   last obs. used      2021-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60929  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 11:32:01  

Additional Information
 Earth MOID = 1.935 au 
 Jupiter MOID = 1.99083 au 
 T_jup = 3.196 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457635.5 (2016-Sep-04.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05833674609653822 6.2706e-08  
q 2.926895400039892 2.1136e-07 au
tp 2457621.727082326146
(2016-Aug-21.22708233)
0.00028984 TDB
node 226.1732440577078 2.8789e-05 deg
peri 128.1999313579117 5.9072e-05 deg
i 9.330270305607518 6.7594e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      319  
   data-arc span      7525 days (20.60 yr)  
   first obs. used      2000-11-01  
   last obs. used      2021-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60929  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 11:32:01  

Additional Information
 Jupiter MOID = 1.99083 au 
 T_jup = 3.196 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.932052847081533E-15 -1.312266672504789E-14 2.465174996961745E-12 -5.355704557692783E-15 5.754501886435513E-13 -1.580759098236924E-15
q -1.312266672504789E-14 4.467352212593488E-14 -4.341665683843138E-12 1.394329290471839E-14 -1.239212649494205E-12 6.620099895863704E-15
tp 2.465174996961745E-12 -4.341665683843138E-12 8.400935417578047E-8 -2.981022430574647E-11 1.495945717155757E-8 6.404091796462399E-12
node -5.355704557692783E-15 1.394329290471839E-14 -2.981022430574647E-11 8.288191016537006E-10 -8.227840718092822E-10 -2.840569140628091E-11
peri 5.754501886435513E-13 -1.239212649494205E-12 1.495945717155757E-8 -8.227840718092822E-10 3.489526507259426E-9 2.911551421352889E-11
i -1.580759098236924E-15 6.620099895863704E-15 6.404091796462399E-12 -2.840569140628091E-11 2.911551421352889E-11 4.569014612458269E-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 15.41   n/a E2021B55  
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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