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JPL Small-Body Database Browser
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39411 (2266 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2039411
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09803137090775998 4.3955e-08  
a 3.005530498725116 2.4868e-08 au
q 2.710894223630009 1.3278e-07 au
i 1.76238116031134 4.5474e-06 deg
node 99.80767880918201 0.00022022 deg
peri 11.6955664421244 0.00022322 deg
M 219.4248387323009 3.7085e-05 deg
tp 2459743.666672756190
(2022-Jun-13.16667276)
0.0001993 TDB
period 1903.181186345918
5.21
2.3621e-05
6.467e-08
d
yr
n .1891569770565014 2.3477e-09 deg/d
Q 3.300166773820223 2.7306e-08 au
  Orbit Determination Parameters
   # obs. used (total)      748  
   data-arc span      17250 days (47.23 yr)  
   first obs. used      1971-03-24  
   last obs. used      2018-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54789  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:12:29  

Additional Information
 Earth MOID = 1.72755 au 
 Jupiter MOID = 1.78802 au 
 T_jup = 3.243 
[ 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 14.6   n/a MPO351107  
diameter diameter 6.443 km 0.349 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.107   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39411 (2266 T-1)          Discovered 1971-Mar-25 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2266 T-1 = 1994 RR21 = 2000 UV51 = 2000 VH62 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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