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JPL Small-Body Database Browser
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74911 (1999 TZ139)
Classification: Main-belt Asteroid          SPK-ID: 2074911
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09619245565140112 3.4424e-08  
a 2.357630331224283 1.0652e-08 au
q 2.130844080145593 8.2687e-08 au
i 6.704306599101717 5.4219e-06 deg
node 24.88971960971568 3.3549e-05 deg
peri 242.8690699545362 4.4605e-05 deg
M 4.359226067629912 3.0549e-05 deg
tp 2458984.488984305461
(2020-May-14.98898431)
0.00011218 TDB
period 1322.245178527264
3.62
8.9607e-06
2.453e-08
d
yr
n .2722641805364519 1.8451e-09 deg/d
Q 2.584416582302973 1.1676e-08 au
  Orbit Determination Parameters
   # obs. used (total)      908  
   data-arc span      7622 days (20.87 yr)  
   first obs. used      1998-05-22  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54073  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:26:36  

Additional Information
 Earth MOID = 1.12522 au 
 Jupiter MOID = 2.48327 au 
 T_jup = 3.538 
[ 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 15.5   n/a MPO436307  

74911 (1999 TZ139)          Discovered 1999-Oct-06 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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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
1954-Jun-03 06:16 < 00:01 Pallas 0.0413529038129344 0.041342325860132 0.0413634828439821 14.9575047517817 14.9575045972401 2434896.761413983 0.557693860543702 624.154041995096 39.4137134705152 -32.4062198849783 84504.9877322371 T 20 CATAB v2.0e-lin.ifort 2019-Jul-13 06:26:44 2019-Jul-13 06:26
2022-Jul-21 16:04 00:01 Ceres 0.0392638784365757 0.0392631236224794 0.0392646333259479 3.07836609242775 3.0783625971761 2459782.169396857 1.18080504299776 140.173070353433 28.9580492420696 -80.244946682485 197258.663348849 T 20 CATAB v2.0e-lin.ifort 2019-Jul-13 06:26:44 2019-Jul-13 06:26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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