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249642 (1999 TU188)
Classification: Main-belt Asteroid          SPK-ID: 2249642
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1846454015343234 5.5793e-08  
a 3.167429874558945 4.0148e-08 au
q 2.582578513539197 1.6601e-07 au
i 9.233476898617891 7.0453e-06 deg
node 318.823378747213 3.9965e-05 deg
peri 134.5367375961716 4.5653e-05 deg
M 127.3583777869263 2.2219e-05 deg
tp 2457872.076484389495
(2017-Apr-28.57648439)
0.00012061 TDB
period 2059.012294098964
5.64
3.9148e-05
1.072e-07
d
yr
n .1748411124264501 3.3243e-09 deg/d
Q 3.752281235578692 4.7561e-08 au
  Orbit Determination Parameters
   # obs. used (total)      291  
   data-arc span      7611 days (20.84 yr)  
   first obs. used      1998-08-20  
   last obs. used      2019-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57295  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:18:55  

Additional Information
 Earth MOID = 1.60938 au 
 Jupiter MOID = 1.46807 au 
 T_jup = 3.156 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457236.5 (2015-Aug-02.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1857855929253763 5.5701e-08  
q 2.57636734882668 1.6674e-07 au
tp 2457870.308291942030
(2017-Apr-26.80829194)
0.0001197 TDB
node 318.9366614620888 3.9958e-05 deg
peri 133.8762485631721 4.5553e-05 deg
i 9.2379020354698 7.049e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      291  
   data-arc span      7611 days (20.84 yr)  
   first obs. used      1998-08-20  
   last obs. used      2019-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57295  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:18:55  

Additional Information
 Jupiter MOID = 1.46807 au 
 T_jup = 3.156 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.102585091589298E-15 -9.132027161522674E-15 1.278559140727127E-12 -5.074990424411167E-15 1.900558216048713E-13 -5.166407248835847E-16
q -9.132027161522674E-15 2.780130954518872E-14 -2.425437510619719E-12 6.292426311669239E-15 -3.817326239927229E-13 3.103766857259179E-15
tp 1.278559140727127E-12 -2.425437510619719E-12 1.432767256964964E-8 -5.165838306788911E-11 2.649599467397644E-9 9.75909488043548E-12
node -5.074990424411167E-15 6.292426311669239E-15 -5.165838306788911E-11 1.596618025182854E-9 -1.584861643274551E-9 2.808786698601431E-11
peri 1.900558216048713E-13 -3.817326239927229E-13 2.649599467397644E-9 -1.584861643274551E-9 2.075067049837066E-9 -2.60768284086332E-11
i -5.166407248835847E-16 3.103766857259179E-15 9.75909488043548E-12 2.808786698601431E-11 -2.60768284086332E-11 4.968797570938133E-11

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 15.4   n/a MPO348681  
diameter diameter 5.297 km 0.215 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249642 (1999 TU188)          Discovered 1999-Oct-12 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ show close-approach data ]
Alternate Designations
 1999 TU188 = 1998 QR2 = 1999 VK215 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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