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JPL Small-Body Database Browser
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27646 (2266 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2027646
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03702223305487647 4.2086e-08  
a 2.329216892758705 7.505e-09 au
q 2.242984082119637 9.9095e-08 au
i 5.523889986640678 5.6539e-06 deg
node 173.669461704305 3.3318e-05 deg
peri 129.7324832328658 7.6862e-05 deg
M 356.2026662355564 6.8414e-05 deg
tp 2458614.195869012848
(2019-May-10.69586901)
0.00024673 TDB
period 1298.414400859963
3.55
6.2754e-06
1.718e-08
d
yr
n .2772612501536995 1.34e-09 deg/d
Q 2.415449703397773 7.7828e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1113  
   data-arc span      16868 days (46.18 yr)  
   first obs. used      1973-09-20  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56474  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 01:40:19  

Additional Information
 Earth MOID = 1.23203 au 
 Jupiter MOID = 2.64683 au 
 T_jup = 3.565 
[ 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 15.2   n/a MPO250476  
diameter diameter 2.393 km 0.191 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.308   0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27646 (2266 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2266 T-2 = 1998 SO72 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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