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120341 (2004 QX12)
Classification: Main-belt Asteroid          SPK-ID: 2120341
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06361447301765964 6.2579e-08  
a 3.021437851088002 2.4873e-08 au
q 2.829230674435429 1.832e-07 au
i 10.84160246887309 6.1255e-06 deg
node 39.97972688120536 2.7689e-05 deg
peri 175.5772451075577 4.8477e-05 deg
M 185.3616447674573 4.0958e-05 deg
tp 2460327.085019231811
(2024-Jan-17.58501923)
0.00022141 TDB
period 1918.310593783151
5.25
2.3688e-05
6.485e-08
d
yr
n .1876651263704042 2.3174e-09 deg/d
Q 3.213645027740575 2.6456e-08 au
  Orbit Determination Parameters
   # obs. used (total)      531  
   data-arc span      7290 days (19.96 yr)  
   first obs. used      2000-11-20  
   last obs. used      2020-11-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55423  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:06:00  

Additional Information
 Earth MOID = 1.82269 au 
 Jupiter MOID = 1.75019 au 
 T_jup = 3.216 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457540.5 (2016-Jun-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06163430740780763 6.2087e-08  
q 2.837218777641374 1.8079e-07 au
tp 2458418.941952645700
(2018-Oct-27.44195265)
0.00022782 TDB
node 40.07853565521115 2.7627e-05 deg
peri 177.6075239505383 5.0299e-05 deg
i 10.8543076946024 6.132e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      531  
   data-arc span      7290 days (19.96 yr)  
   first obs. used      2000-11-20  
   last obs. used      2020-11-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55423  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:06:00  

Additional Information
 Jupiter MOID = 1.75019 au 
 T_jup = 3.216 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.85481492669725E-15 -1.114023055259225E-14 -7.967832691489787E-12 -1.115529919944325E-14 -1.597943870492182E-12 7.329695362989347E-15
q -1.114023055259225E-14 3.268530974913066E-14 2.481111072498141E-11 3.315929323965087E-14 4.900648002907786E-12 -2.101589274663391E-14
tp -7.967832691489787E-12 2.481111072498141E-11 5.190148570529429E-8 6.744974573940442E-11 9.603623820686888E-9 -3.110768041318212E-11
node -1.115529919944325E-14 3.315929323965087E-14 6.744974573940442E-11 7.6325377440628E-10 -7.364992274669532E-10 -1.143834337559797E-10
peri -1.597943870492182E-12 4.900648002907786E-12 9.603623820686888E-9 -7.364992274669532E-10 2.529984207387613E-9 1.063200371587018E-10
i 7.329695362989347E-15 -2.101589274663391E-14 -3.110768041318212E-11 -1.143834337559797E-10 1.063200371587018E-10 3.760141053930806E-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 15.1   n/a MPO348203  
diameter diameter 4.211 km 0.878 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.120   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120341 (2004 QX12)          Discovered 2004-Aug-21 by Siding Spring Survey at Siding Spring
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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Alternate Designations
 2004 QX12 = 2000 WX109 = 2002 CV65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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