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215139 (1999 TS218)
Classification: Main-belt Asteroid          SPK-ID: 2215139
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1904420482541161 3.8867e-08  
a 3.193378367460749 3.3094e-08 au
q 2.585224850311139 1.353e-07 au
i 4.83889670671482 5.7733e-06 deg
node 211.5063087923907 4.958e-05 deg
peri 102.5973606255515 5.2114e-05 deg
M 269.1236231899384 1.6986e-05 deg
tp 2459526.665657075929
(2021-Nov-08.16565708)
0.00010298 TDB
period 2084.366071759614
5.71
3.2402e-05
8.871e-08
d
yr
n .1727143829855614 2.6849e-09 deg/d
Q 3.80153188461036 3.9397e-08 au
  Orbit Determination Parameters
   # obs. used (total)      389  
   data-arc span      7508 days (20.56 yr)  
   first obs. used      1999-10-06  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53729  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 09:15:46  

Additional Information
 Earth MOID = 1.57705 au 
 Jupiter MOID = 1.54643 au 
 T_jup = 3.162 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO433407  
diameter diameter 4.624 km 0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

215139 (1999 TS218)          Discovered 1999-Oct-15 by LINEAR at Socorro
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ show close-approach data ]
Alternate Designations
 1999 TS218 = 1999 TA138 = 2004 NP7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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