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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03684429567750074 4.2006e-08  
a 2.329160066199218 7.3979e-09 au
q 2.243343804039947 9.8854e-08 au
i 5.523910473526367 5.6319e-06 deg
node 173.664521895423 3.2868e-05 deg
peri 130.0000944506383 7.6744e-05 deg
M 106.8720663184734 6.838e-05 deg
tp 2458615.057911712127
(2019-May-11.55791171)
0.00024711 TDB
period 1298.366884477924
3.55
6.1859e-06
1.694e-08
d
yr
n .2772713970941709 1.321e-09 deg/d
Q 2.41497632835849 7.6705e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1122  
   data-arc span      16926 days (46.34 yr)  
   first obs. used      1973-09-20  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56396  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 01:07:50  

Additional Information
 Earth MOID = 1.23317 au 
 Jupiter MOID = 2.64648 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 15.3   n/a MPO502364  
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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