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17549 (1993 TW12)
Classification: Main-belt Asteroid          SPK-ID: 2017549
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1159011033277339 3.2655e-08  
a 2.315494102865653 8.4011e-09 au
q 2.047125781594663 7.5898e-08 au
i 6.803526497368429 4.1244e-06 deg
node 48.01848275392288 2.8973e-05 deg
peri 17.53216833317822 3.4104e-05 deg
M 221.8975405295444 1.9778e-05 deg
tp 2459694.199693964123
(2022-Apr-24.69969396)
7.192e-05 TDB
period 1286.956731318075
3.52
7.004e-06
1.918e-08
d
yr
n .2797296841761691 1.5224e-09 deg/d
Q 2.583862424136644 9.3747e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1417  
   data-arc span      14832 days (40.61 yr)  
   first obs. used      1979-11-17  
   last obs. used      2020-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49576  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:06:01  

Additional Information
 Earth MOID = 1.0608 au 
 Jupiter MOID = 2.69213 au 
 T_jup = 3.563 
[ 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 14.54   n/a E2021B10  
diameter diameter 3.374 km 0.326 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.224   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17549 (1993 TW12)          Discovered 1993-Oct-13 by Holt, H. E. at Palomar
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1993 TW12 = 1979 WY5 = 1999 KV11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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