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19887 (1279 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2019887
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1663771622772762 3.2491e-08  
a 2.23646666929278 5.2419e-09 au
q 1.864369691328135 7.1751e-08 au
i 1.331025112478043 3.1325e-06 deg
node 173.3981815499254 0.0001315 deg
peri 214.1233098335802 0.0001318 deg
M 25.94003526510235 7.9711e-06 deg
tp 2459112.474169040554
(2020-Sep-19.97416904)
2.7061e-05 TDB
period 1221.636702554252
3.34
4.295e-06
1.176e-08
d
yr
n .2946866275770006 1.036e-09 deg/d
Q 2.608563647257424 6.114e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1482  
   data-arc span      17352 days (47.51 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50631  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 03:00:26  

Additional Information
 Earth MOID = .867814 au 
 Jupiter MOID = 2.83438 au 
 T_jup = 3.619 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.59   n/a E2021B10  

19887 (1279 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1279 T-2 = 1993 QQ3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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