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59430 (1999 GT12)
Classification: Main-belt Asteroid          SPK-ID: 2059430
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05382080389916433 3.6385e-08  
a 3.154822831611106 2.2344e-08 au
q 2.985027730654359 1.1812e-07 au
i 8.331927211737399 5.7319e-06 deg
node 201.1315486090975 2.8308e-05 deg
peri 274.1418714002466 6.1846e-05 deg
M 37.16615435563536 5.4152e-05 deg
tp 2458989.196828705657
(2020-May-19.69682871)
0.00030782 TDB
period 2046.731575671602
5.60
2.1744e-05
5.953e-08
d
yr
n .1758901872034059 1.8686e-09 deg/d
Q 3.324617932567854 2.3547e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1028  
   data-arc span      8854 days (24.24 yr)  
   first obs. used      1996-10-18  
   last obs. used      2021-01-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53725  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 05:47:00  

Additional Information
 Earth MOID = 2.01651 au 
 Jupiter MOID = 1.7644 au 
 T_jup = 3.188 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456888.5 (2014-Aug-19.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0541141963678963 3.7085e-08  
q 2.985462814754977 1.2101e-07 au
tp 2456962.625401799107
(2014-Nov-01.12540180)
0.00030264 TDB
node 201.2998300963599 2.8385e-05 deg
peri 277.5918528348043 6.0975e-05 deg
i 8.317858798261499 5.7246e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1028  
   data-arc span      8854 days (24.24 yr)  
   first obs. used      1996-10-18  
   last obs. used      2021-01-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53725  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 05:47:00  

Additional Information
 Jupiter MOID = 1.7644 au 
 T_jup = 3.188 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.375332555510255E-15 -4.41919788980874E-15 2.004009956496776E-12 -2.583404641739616E-15 3.678160304497765E-13 -2.183716126324405E-15
q -4.41919788980874E-15 1.464432555165788E-14 -7.044315792091938E-12 1.010036447062239E-14 -1.297840197434142E-12 6.536309916818494E-15
tp 2.004009956496776E-12 -7.044315792091938E-12 9.158819905880531E-8 -3.350910108259325E-11 1.634835585296136E-8 -1.30225446332274E-11
node -2.583404641739616E-15 1.010036447062239E-14 -3.350910108259325E-11 8.057028638982268E-10 -8.028853752984789E-10 -1.188417986092425E-11
peri 3.678160304497765E-13 -1.297840197434142E-12 1.634835585296136E-8 -8.028853752984789E-10 3.717908955243612E-9 9.355788891391647E-12
i -2.183716126324405E-15 6.536309916818494E-15 -1.30225446332274E-11 -1.188417986092425E-11 9.355788891391647E-12 3.277062060244575E-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 14.26   n/a E2021B10  
diameter diameter 8.724 km 0.234 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59430 (1999 GT12)          Discovered 1999-Apr-12 by Spacewatch at Kitt Peak
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 GT12 = 2001 QG185 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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