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74984 (1999 TW248)
Classification: Main-belt Asteroid          SPK-ID: 2074984
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07873610292063017 4.2276e-08  
a 2.288993923730084 9.3655e-09 au
q 2.108767462566575 9.7835e-08 au
i 7.013729387336327 4.7646e-06 deg
node 184.5899260884613 3.4377e-05 deg
peri 236.2646149948294 4.4929e-05 deg
M 330.734311809477 3.0371e-05 deg
tp 2459103.330424098520
(2020-Sep-10.83042410)
0.00010696 TDB
period 1264.926778228129
3.46
7.7632e-06
2.125e-08
d
yr
n .284601453772903 1.7467e-09 deg/d
Q 2.469220384893593 1.0103e-08 au
  Orbit Determination Parameters
   # obs. used (total)      929  
   data-arc span      7329 days (20.07 yr)  
   first obs. used      1999-10-08  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54903  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:25:18  

Additional Information
 Earth MOID = 1.12921 au 
 Jupiter MOID = 2.75154 au 
 T_jup = 3.586 
[ 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 MPO493393  

74984 (1999 TW248)          Discovered 1999-Oct-08 by CSS at Catalina
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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