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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2227289612341992 4.3141e-08  
a 2.773856145331099 1.5665e-08 au
q 2.156038047468404 1.172e-07 au
i 6.184406500514674 4.075e-06 deg
node 228.8493328978191 3.8459e-05 deg
peri 89.54908050473941 4.0107e-05 deg
M 208.5109720237532 1.5945e-05 deg
tp 2460106.573012196733
(2023-Jun-11.07301220)
7.8749e-05 TDB
period 1687.42441486195
4.62
1.4294e-05
3.913e-08
d
yr
n .213342889215842 1.8072e-09 deg/d
Q 3.391674243193795 1.9154e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1024  
   data-arc span      15856 days (43.41 yr)  
   first obs. used      1977-10-07  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50555  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:41:15  

Additional Information
 Earth MOID = 1.15327 au 
 Jupiter MOID = 1.97846 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 14.81   n/a MPCxxxxx  
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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