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308502 (2005 TW171)
Classification: Main-belt Asteroid          SPK-ID: 2308502
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1336402854799089 1.1366e-07  
a 3.129318652061761 4.3431e-08 au
q 2.711115614042623 3.5693e-07 au
i 12.1510512832971 8.1422e-06 deg
node 255.9558134491259 4.7824e-05 deg
peri 102.5555090201697 5.4881e-05 deg
M 256.0410684588813 3.159e-05 deg
tp 2459584.391854148443
(2022-Jan-04.89185415)
0.00018404 TDB
period 2021.962561343747
5.54
4.2093e-05
1.152e-07
d
yr
n .1780448396436939 3.7065e-09 deg/d
Q 3.547521690080898 4.9235e-08 au
  Orbit Determination Parameters
   # obs. used (total)      305  
   data-arc span      7004 days (19.18 yr)  
   first obs. used      2000-11-21  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46333  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 18:17:46  

Additional Information
 Earth MOID = 1.7415 au 
 Jupiter MOID = 2.04871 au 
 T_jup = 3.165 
[ 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 14.8   n/a MPO437366  
diameter diameter 4.778 km 0.441 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.102   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

308502 (2005 TW171)          Discovered 2005-Oct-10 by CSS at Catalina
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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