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523811 (2008 TQ2)
Classification: Amor [NEO]          SPK-ID: 2523811
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 91 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4194680698088678 2.5712e-08  
a 1.843825288340112 3.1815e-09 au
q 1.070399453575306 4.7672e-08 au
i 3.872325648156964 2.3261e-06 deg
node 225.4097101779056 4.3253e-05 deg
peri 235.3510788407035 4.8495e-05 deg
M 204.345282369315 5.6497e-06 deg
tp 2459395.901092272435
(2021-Jun-30.40109227)
1.4242e-05 TDB
period 914.4881400627436
2.50
2.3669e-06
6.48e-09
d
yr
n .393662841789616 1.0189e-09 deg/d
Q 2.617251123104918 4.516e-09 au
  Orbit Determination Parameters
   # obs. used (total)      330  
   data-arc span      3835 days (10.50 yr)  
   first obs. used      2008-10-03  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46581  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Apr-09 07:33:33  

Additional Information
 Earth MOID = .103259 au 
 Jupiter MOID = 2.57631 au 
 T_jup = 3.900 
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Orbital Elements at Epoch 2457699.5 (2016-Nov-07.0) TDB
Reference: JPL 91 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4198268936502149 2.6021e-08  
q 1.069863877038039 4.7933e-08 au
tp 2457566.789765769864
(2016-Jun-27.28976577)
1.5179e-05 TDB
node 225.5226202915503 4.3152e-05 deg
peri 235.1484189650232 4.8403e-05 deg
i 3.877259470477987 2.3283e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      330  
   data-arc span      3835 days (10.50 yr)  
   first obs. used      2008-10-03  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46581  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Apr-09 07:33:33  

Additional Information
 Jupiter MOID = 2.57631 au 
 T_jup = 3.900 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.770678585440155E-16 -1.246396776982654E-15 -1.691813730632185E-13 2.791520542429684E-13 -4.878230575198091E-13 -1.480653876709521E-14
q -1.246396776982654E-15 2.297591957676015E-15 3.003679382137833E-13 -5.09007729405666E-13 8.850689697032055E-13 2.774066331119288E-14
tp -1.691813730632185E-13 3.003679382137833E-13 2.303878193000295E-10 -1.199320602052976E-10 3.406879609705656E-10 -5.395678711807538E-12
node 2.791520542429684E-13 -5.09007729405666E-13 -1.199320602052976E-10 1.862130090031088E-9 -1.992513808416922E-9 2.924651175704044E-11
peri -4.878230575198091E-13 8.850689697032055E-13 3.406879609705656E-10 -1.992513808416922E-9 2.342821014019123E-9 -3.216322357317586E-11
i -1.480653876709521E-14 2.774066331119288E-14 -5.395678711807538E-12 2.924651175704044E-11 -3.216322357317586E-11 5.420912526353235E-12

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 20.9   n/a MPO473044  
rotation period rot_per 1.238 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Statler, T.S.; Cotto-Figueroa, D.; Riethmiller, D.A.; Sweeney, K.M. (2013) Icarus 225, 141-155.]

523811 (2008 TQ2)          Discovered 2008-Oct-03 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2018-10-30

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