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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09619239764971398 3.311e-08  
a 2.357630336982424 9.1104e-09 au
q 2.130844222096381 7.8167e-08 au
i 6.704308896765938 4.2827e-06 deg
node 24.88971648492072 3.2475e-05 deg
peri 242.8690880936678 4.0382e-05 deg
M 4.359211757876522 2.2781e-05 deg
tp 2458984.489036805145
(2020-May-14.98903680)
8.3691e-05 TDB
period 1322.245183371327
3.62
7.6642e-06
2.098e-08
d
yr
n .2722641795390083 1.5781e-09 deg/d
Q 2.584416451868466 9.9868e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1036  
   data-arc span      8130 days (22.26 yr)  
   first obs. used      1998-05-22  
   last obs. used      2020-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52404  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:41:52  

Additional Information
 Earth MOID = 1.12522 au 
 Jupiter MOID = 2.48327 au 
 T_jup = 3.538 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456864.5 (2014-Jul-26.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0964989607599593 3.3211e-08  
q 2.129132025139118 7.8344e-08 au
tp 2456339.512816678229
(2013-Feb-16.01281668)
8.7462e-05 TDB
node 24.96040073902055 3.2491e-05 deg
peri 242.4517037428633 4.0305e-05 deg
i 6.704030594805169 4.2817e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1036  
   data-arc span      8130 days (22.26 yr)  
   first obs. used      1998-05-22  
   last obs. used      2020-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52404  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:41:52  

Additional Information
 Jupiter MOID = 2.48327 au 
 T_jup = 3.538 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.102960302797022E-15 -2.587507119933385E-15 -1.099081591643669E-13 1.756916653528068E-15 -3.338654653929089E-14 -1.559980787571907E-15
q -2.587507119933385E-15 6.137850772915446E-15 -2.098346408191286E-15 -3.725448059573703E-15 1.368965482143488E-14 3.803049665916106E-15
tp -1.099081591643669E-13 -2.098346408191286E-15 7.649634270787311E-9 5.50473355712766E-12 2.096689575813822E-9 -1.023275513357935E-12
node 1.756916653528068E-15 -3.725448059573703E-15 5.50473355712766E-12 1.05569056179654E-9 -1.046570535263886E-9 -1.106740998904184E-11
peri -3.338654653929089E-14 1.368965482143488E-14 2.096689575813822E-9 -1.046570535263886E-9 1.624502571199848E-9 1.073357860764523E-11
i -1.559980787571907E-15 3.803049665916106E-15 -1.023275513357935E-12 -1.106740998904184E-11 1.073357860764523E-11 1.833254189648331E-11

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

[ 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
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 24 CATAB v2.0f-lin.ifort 2020-Nov-12 21:41:54 2020-Nov-12 21:41
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 24 CATAB v2.0f-lin.ifort 2020-Nov-12 21:41:54 2020-Nov-12 21:41
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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