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JPL Small-Body Database Browser
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74860 (1999 TZ89)
Classification: Main-belt Asteroid          SPK-ID: 2074860
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1960662039464275 3.929e-08  
a 2.373681449666354 9.7024e-09 au
q 1.908282738452219 9.1372e-08 au
i 2.17884381509182 5.0145e-06 deg
node 172.3161179442103 0.00011277 deg
peri 278.0763044541222 0.00011351 deg
M 64.06347406812296 1.3251e-05 deg
tp 2458362.794042746913
(2018-Sep-01.29404275)
4.8631e-05 TDB
period 1335.771215281188
3.66
8.1899e-06
2.242e-08
d
yr
n .2695072298920724 1.6524e-09 deg/d
Q 2.839080160880489 1.1605e-08 au
  Orbit Determination Parameters
   # obs. used (total)      741  
   data-arc span      15216 days (41.66 yr)  
   first obs. used      1977-09-09  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53672  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:42:13  

Additional Information
 Earth MOID = .926308 au 
 Jupiter MOID = 2.3653 au 
 T_jup = 3.516 
[ 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 15.8   n/a MPO319942  

74860 (1999 TZ89)          Discovered 1999-Oct-02 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TZ89 = 1977 RL9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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