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90655 (2144 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2090655
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2226533173626811 4.3166e-08  
a 2.773853369259556 1.5978e-08 au
q 2.156245714716266 1.1727e-07 au
i 6.184845154033769 4.7947e-06 deg
node 228.8738555819001 3.8764e-05 deg
peri 89.45508805034949 4.0659e-05 deg
M 124.1360085999397 1.5758e-05 deg
tp 2458418.639396613928
(2018-Oct-27.13939661)
7.1196e-05 TDB
period 1687.421881704417
4.62
1.458e-05
3.992e-08
d
yr
n .2133432094861626 1.8433e-09 deg/d
Q 3.391461023802846 1.9535e-08 au
  Orbit Determination Parameters
   # obs. used (total)      946  
   data-arc span      15453 days (42.31 yr)  
   first obs. used      1977-10-07  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50678  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:15:37  

Additional Information
 Earth MOID = 1.15411 au 
 Jupiter MOID = 1.97908 au 
 T_jup = 3.291 
[ 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 14.8   n/a MPO453344  
diameter diameter 5.582 km 1.554 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.068   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

90655 (2144 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 2144 T-3 = 2000 QU121 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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