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90622 (1155 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2090622
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1591835524352134 3.7201e-08  
a 2.709899494715664 1.0621e-08 au
q 2.278528066404435 1.0055e-07 au
i 3.96928024057667 3.9077e-06 deg
node 189.91767858 4.9087e-05 deg
peri 205.0197942846692 5.0131e-05 deg
M 226.6266276315796 1.1661e-05 deg
tp 2460000.163384886412
(2023-Feb-24.66338489)
5.4577e-05 TDB
period 1629.401841612007
4.46
9.5797e-06
2.623e-08
d
yr
n .2209399736800611 1.299e-09 deg/d
Q 3.141270923026893 1.2312e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1290  
   data-arc span      17481 days (47.86 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-07-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5011  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:16:29  

Additional Information
 Earth MOID = 1.28509 au 
 Jupiter MOID = 2.2888 au 
 T_jup = 3.342 
[ 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 14.90   n/a MPO637233  
diameter diameter 2.612 km 0.789 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.374   0.162 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

90622 (1155 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1155 T-2 = 2000 RE6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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