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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 92 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4195849225270143 2.5567e-08  
a 1.843119150191568 3.2253e-09 au
q 1.069774144350383 4.7354e-08 au
i 3.871814635187743 2.3249e-06 deg
node 225.347865978957 4.3272e-05 deg
peri 235.4748151134441 4.8511e-05 deg
M 282.9983166740842 5.6007e-06 deg
tp 2459395.990772470926
(2021-Jun-30.49077247)
1.4152e-05 TDB
period 913.9628518464755
2.50
2.3991e-06
6.568e-09
d
yr
n .3938890943682158 1.0339e-09 deg/d
Q 2.616464156032754 4.5787e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .467  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 19:24:04  

Additional Information
 Earth MOID = .102577 au 
 Jupiter MOID = 2.57696 au 
 T_jup = 3.901 
[ show covariance matrix ]

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 1.3549 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2020) http://www.asu.cas.cz/~ppravec/neo.htm]

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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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