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JPL Small-Body Database Browser
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379254 (2009 TT39)
Classification: Main-belt Asteroid          SPK-ID: 2379254
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09715831634948946 8.0725e-08  
a 2.639170078082033 3.9693e-08 au
q 2.382752756735632 2.1856e-07 au
i 12.85540715384002 9.4694e-06 deg
node 222.1579539251296 3.8948e-05 deg
peri 101.8978815419364 6.0344e-05 deg
M 228.9290903430784 4.7549e-05 deg
tp 2459570.668614783829
(2021-Dec-22.16861478)
0.00021105 TDB
period 1566.027899397729
4.29
3.5329e-05
9.673e-08
d
yr
n .2298809619793176 5.186e-09 deg/d
Q 2.895587399428434 4.3549e-08 au
  Orbit Determination Parameters
   # obs. used (total)      123  
   data-arc span      5188 days (14.20 yr)  
   first obs. used      2005-11-06  
   last obs. used      2020-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62155  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:09:30  

Additional Information
 Earth MOID = 1.41224 au 
 Jupiter MOID = 2.39202 au 
 T_jup = 3.354 
[ 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 16.5   n/a MPO471888  

379254 (2009 TT39)          Discovered 2009-Oct-14 by CSS at Catalina
Reference: Last Updated: 2013-11-20

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2189-Oct-04 15:28 02:33 Thisb 0.0358561957628195 0.0346338897329041 0.0371575384002878 3.77478438426211 3.77478433388672 2520853.144710758 153.235958325364 104860.779165637 105.124774855678 53.1072570031935 40781.6827464585 T 15 CATAB v2.0f-lin.ifort 2020-Feb-26 03:09:32 2020-Feb-26 03:09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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