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74995 (1999 TQ271)
Classification: Main-belt Asteroid          SPK-ID: 2074995
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08522545627686469 3.7132e-08  
a 2.342178145352801 1.053e-08 au
q 2.142564944233408 8.6794e-08 au
i 5.995153169242069 4.7536e-06 deg
node 322.9311833520503 4.1055e-05 deg
peri 279.5179533748793 5.0801e-05 deg
M 41.09911382508668 2.9139e-05 deg
tp 2458851.028542171289
(2020-Jan-02.52854217)
0.00010604 TDB
period 1309.267276354044
3.58
8.8296e-06
2.417e-08
d
yr
n .2749629556178192 1.8543e-09 deg/d
Q 2.541791346472194 1.1428e-08 au
  Orbit Determination Parameters
   # obs. used (total)      899  
   data-arc span      7591 days (20.78 yr)  
   first obs. used      1999-09-05  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52734  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:51:27  

Additional Information
 Earth MOID = 1.13946 au 
 Jupiter MOID = 2.49212 au 
 T_jup = 3.551 
[ 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 15.4   n/a MPO432303  

74995 (1999 TQ271)          Discovered 1999-Oct-03 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TQ271 = 2000 YY117 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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