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128895 Bright Spring (2004 TW)
Classification: Main-belt Asteroid          SPK-ID: 2128895
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1666531470628308 3.3866e-08  
a 2.330864305727949 1.0279e-08 au
q 1.942418433801966 8.2236e-08 au
i 2.447699305235561 4.6243e-06 deg
node 9.989193045752693 7.9233e-05 deg
peri 279.0324003180164 8.0838e-05 deg
M 266.0066622429461 1.4069e-05 deg
tp 2459539.866121361247
(2021-Nov-21.36612136)
5.0737e-05 TDB
period 1299.792161927779
3.56
8.598e-06
2.354e-08
d
yr
n .2769673572012222 1.8321e-09 deg/d
Q 2.719310177653932 1.1992e-08 au
  Orbit Determination Parameters
   # obs. used (total)      492  
   data-arc span      18300 days (50.10 yr)  
   first obs. used      1971-03-25  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56567  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 09:13:54  

Additional Information
 Earth MOID = .926052 au 
 Jupiter MOID = 2.44768 au 
 T_jup = 3.551 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457683.5 (2016-Oct-22.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1672452188776672 3.3808e-08  
q 1.940660877823257 8.2099e-08 au
tp 2458239.243381199268
(2018-Apr-30.74338120)
5.1294e-05 TDB
node 10.01952267442723 7.917e-05 deg
peri 278.9272021498309 8.0769e-05 deg
i 2.449534208577264 4.6254e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      492  
   data-arc span      18300 days (50.10 yr)  
   first obs. used      1971-03-25  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56567  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 09:13:54  

Additional Information
 Jupiter MOID = 2.44768 au 
 T_jup = 3.551 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.142990669805419E-15 -2.762351665678293E-15 2.00694784336488E-13 -9.701212833715044E-16 1.201856250359141E-13 -5.649707888901125E-17
q -2.762351665678293E-15 6.740176818493896E-15 -5.401274094235964E-13 3.474435539178054E-15 -3.140430599864932E-13 1.495654031341579E-16
tp 2.00694784336488E-13 -5.401274094235964E-13 2.631067333594615E-9 -2.69761784092657E-11 8.222848658395593E-10 7.567286565122956E-13
node -9.701212833715044E-16 3.474435539178054E-15 -2.69761784092657E-11 6.267913780110687E-9 -6.26991362719129E-9 2.131997588039366E-11
peri 1.201856250359141E-13 -3.140430599864932E-13 8.222848658395593E-10 -6.26991362719129E-9 6.523711013592673E-9 -2.10748160757485E-11
i -5.649707888901125E-17 1.495654031341579E-16 7.567286565122956E-13 2.131997588039366E-11 -2.10748160757485E-11 2.13941087217828E-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 16.87   n/a MPCxxxxx  
diameter diameter 1.946 km 0.532 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.081   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

128895 Bright Spring           Discovered 2004 Oct. 4 at Jarnac.
Bright Spring is the title of an essay by Summer Vigil, a second-grade student in Albuquerque, New Mexico, about a fictitious discovery of a new major planet.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070730/MPCPages.arcLast Updated: 2007-08-07

Alternate Designations
 2004 TW = 3122 T-1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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