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74827 (1999 TW17)
Classification: Main-belt Asteroid          SPK-ID: 2074827
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2226499208232914 3.9708e-08  
a 2.351161327133316 7.9143e-09 au
q 1.827675443804299 9.43e-08 au
i 3.168547006123468 3.7008e-06 deg
node 108.5973294734089 8.3431e-05 deg
peri 253.23518578938 8.381e-05 deg
M 273.3792033638522 8.8334e-06 deg
tp 2459317.341269078964
(2021-Apr-12.84126908)
3.2984e-05 TDB
period 1316.806832746529
3.61
6.6488e-06
1.82e-08
d
yr
n .2733886178651809 1.3804e-09 deg/d
Q 2.874647210462334 9.6764e-09 au
  Orbit Determination Parameters
   # obs. used (total)      913  
   data-arc span      14113 days (38.64 yr)  
   first obs. used      1981-10-24  
   last obs. used      2020-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5018  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:51:07  

Additional Information
 Earth MOID = .827898 au 
 Jupiter MOID = 2.58267 au 
 T_jup = 3.522 
[ 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 16.0   n/a MPO337822  

74827 (1999 TW17)          Discovered 1999-Oct-04 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TW17 = 1981 UH17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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