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118421 (1999 TM65)
Classification: Main-belt Asteroid          SPK-ID: 2118421
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04057000219536808 6.419e-08  
a 3.025632249359598 2.3216e-08 au
q 2.902882342360702 1.9062e-07 au
i 2.134996074268218 7.2768e-06 deg
node 178.5149710987283 0.00010065 deg
peri 33.28449409338418 0.00011853 deg
M 114.9212601241056 6.4156e-05 deg
tp 2458386.850313960770
(2018-Sep-25.35031396)
0.0003414 TDB
period 1922.30651435212
5.26
2.2125e-05
6.057e-08
d
yr
n .1872750247227517 2.1555e-09 deg/d
Q 3.148382156358493 2.4158e-08 au
  Orbit Determination Parameters
   # obs. used (total)      414  
   data-arc span      8619 days (23.60 yr)  
   first obs. used      1997-03-04  
   last obs. used      2020-10-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53913  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:11:40  

Additional Information
 Earth MOID = 1.89687 au 
 Jupiter MOID = 1.81124 au 
 T_jup = 3.243 
[ 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 15.7   n/a MPO436569  
diameter diameter 4.307 km 0.635 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118421 (1999 TM65)          Discovered 1999-Oct-08 by Spacewatch at Kitt Peak
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 1999 TM65 = 2004 PB88 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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