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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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09803136536767573 4.4425e-08  
a 3.005530491786713 2.5181e-08 au
q 2.71089423402268 1.3473e-07 au
i 1.762386143386401 4.59e-06 deg
node 99.80785274537283 0.00022074 deg
peri 11.69540826863589 0.00022373 deg
M 219.4248235227805 3.7153e-05 deg
tp 2459743.666750589608
(2022-Jun-13.16675059)
0.00019973 TDB
period 1903.181179755549
5.21
2.3918e-05
6.548e-08
d
yr
n .1891569777115175 2.3772e-09 deg/d
Q 3.300166749550747 2.7649e-08 au
  Orbit Determination Parameters
   # obs. used (total)      745  
   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      .54508  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 19:32:57  

Additional Information
 Earth MOID = 1.72755 au 
 Jupiter MOID = 1.78802 au 
 T_jup = 3.243 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456148.5 (2012-Aug-09.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09529160795372661 4.2767e-08  
q 2.71941141979746 1.2874e-07 au
tp 2455918.017926872693
(2011-Dec-22.51792687)
0.00019592 TDB
node 99.84110577825139 0.0002213 deg
peri 8.940422463444056 0.00022462 deg
i 1.761561884824358 4.5761e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      745  
   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      .54508  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 19:32:57  

Additional Information
 Jupiter MOID = 1.78802 au 
 T_jup = 3.243 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.829042275216707E-15 -5.422084542421982E-15 2.151405130726365E-12 1.160504147573505E-14 4.485384827413551E-13 2.565670490907661E-16
q -5.422084542421982E-15 1.657401976491246E-14 -5.504389458991911E-12 -3.683151272721577E-14 -1.148843074719785E-12 -5.267457337473539E-16
tp 2.151405130726365E-12 -5.504389458991911E-12 3.838451101906055E-8 -4.177863868219767E-11 7.627937815090976E-9 2.043992358698735E-12
node 1.160504147573505E-14 -3.683151272721577E-14 -4.177863868219767E-11 4.897267199428919E-8 -4.89570261032721E-8 7.86998610154305E-11
peri 4.485384827413551E-13 -1.148843074719785E-12 7.627937815090976E-9 -4.89570261032721E-8 5.045599117618081E-8 -7.824867288555995E-11
i 2.565670490907661E-16 -5.267457337473539E-16 2.043992358698735E-12 7.86998610154305E-11 -7.824867288555995E-11 2.094091152693015E-11

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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