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388945 (2008 TZ3)
Classification: Apollo [NEO, PHA]          SPK-ID: 2388945
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 165 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3909025277796307 1.0214e-08  
a 1.58979913393746 3.3658e-09 au
q .9683426338194392 1.5213e-08 au
i 8.718646054701312 3.0036e-06 deg
node 44.05828919242474 4.2243e-06 deg
peri 219.7205040672927 5.7535e-06 deg
M 94.17803981741099 1.2002e-06 deg
tp 2459008.960231947772
(2020-Jun-08.46023195)
2.4557e-06 TDB
period 732.1697991643069
2.00
2.3251e-06
6.366e-09
d
yr
n .491689223470978 1.5614e-09 deg/d
Q 2.211255634055481 4.6815e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1184  
   # delay obs. used      2  
   # Doppler obs. used      1  
   data-arc span      4398 days (12.04 yr)  
   first obs. used      2008-10-06  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .28571  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-23 00:38:07  

Additional Information
 Earth MOID = .0157275 au 
 Jupiter MOID = 2.89321 au 
 T_jup = 4.279 
[ 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 20.46   n/a E2021B25  
rotation period rot_per 39.15 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. (2019) http://www.asu.cas.cz/~ppravec/neo.htm]
[Pravec, P.; Wolf, M.; Sarounova, L. (2020) http://www.asu.cas.cz/~ppravec/neo.htm]

388945 (2008 TZ3)          Discovered 2008-Oct-06 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-03-21

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