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JPL Small-Body Database Browser
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17644 (1996 TW8)
Classification: Main-belt Asteroid          SPK-ID: 2017644
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0684643583152095 3.9306e-08  
a 2.672188992128435 1.3587e-08 au
q 2.489239287485395 1.047e-07 au
i 21.29414907386224 4.6918e-06 deg
node 286.7637028978282 1.4162e-05 deg
peri 156.2788062068013 5.0379e-05 deg
M 85.81903207189947 4.5902e-05 deg
tp 2458620.152738242821
(2019-May-16.65273824)
0.00020372 TDB
period 1595.508722562474
4.37
1.2169e-05
3.332e-08
d
yr
n .2256333637724152 1.7209e-09 deg/d
Q 2.855138696771474 1.4517e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1497  
   data-arc span      11352 days (31.08 yr)  
   first obs. used      1989-01-04  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40935  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:08:47  

Additional Information
 Earth MOID = 1.51387 au 
 Jupiter MOID = 2.32783 au 
 T_jup = 3.279 
[ 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 12.9   n/a MPO416897  

17644 (1996 TW8)          Discovered 1996-Oct-10 by Spahr, T. B. at Catalina Station
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1996 TW8 = 1989 AS 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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