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JPL Small-Body Database Browser
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74986 (1999 TZ251)
Classification: Main-belt Asteroid          SPK-ID: 2074986
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09914283831745954 3.9196e-08  
a 2.26628948961312 1.2182e-08 au
q 2.041603117163849 9.3321e-08 au
i 8.655909806065189 4.7645e-06 deg
node 138.7461484534294 2.5141e-05 deg
peri 295.9128088837468 3.631e-05 deg
M 214.3407538811688 2.8974e-05 deg
tp 2459104.704898846198
(2020-Sep-12.20489885)
0.00010245 TDB
period 1246.153391708134
3.41
1.0048e-05
2.751e-08
d
yr
n .2888889942405396 2.3293e-09 deg/d
Q 2.490975862062392 1.339e-08 au
  Orbit Determination Parameters
   # obs. used (total)      472  
   data-arc span      7346 days (20.11 yr)  
   first obs. used      1999-09-14  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58875  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 08:57:00  

Additional Information
 Earth MOID = 1.07369 au 
 Jupiter MOID = 2.70284 au 
 T_jup = 3.594 
[ 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 16.3   n/a MPO436308  

74986 (1999 TZ251)          Discovered 1999-Oct-08 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TZ251 = 2002 PO39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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