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91617 (1999 TW36)
Classification: Main-belt Asteroid          SPK-ID: 2091617
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1182519206771284 4.3529e-08  
a 2.899694100920641 1.7272e-08 au
q 2.556799704110636 1.2851e-07 au
i 10.65047498701047 4.4362e-06 deg
node 358.8759907099555 2.2741e-05 deg
peri 7.229754358632741 2.9497e-05 deg
M 86.18279031140574 1.9803e-05 deg
tp 2458568.737664111984
(2019-Mar-26.23766411)
9.9363e-05 TDB
period 1803.543843939746
4.94
1.6115e-05
4.412e-08
d
yr
n .1996070132753741 1.7835e-09 deg/d
Q 3.242588497730646 1.9315e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2234  
   data-arc span      7510 days (20.56 yr)  
   first obs. used      1999-10-03  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39925  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:42:23  

Additional Information
 Earth MOID = 1.55522 au 
 Jupiter MOID = 2.21485 au 
 T_jup = 3.251 
[ 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 13.5   n/a MPO449563  
diameter diameter 12.836 km 0.080 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.042   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91617 (1999 TW36)          Discovered 1999-Oct-15 by LONEOS at Anderson Mesa
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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