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46472 (2155 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2046472
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1166953879414811 4.0294e-08  
a 3.129200469611296 1.9808e-08 au
q 2.764037206863341 1.2977e-07 au
i 1.722078866039984 4.4279e-06 deg
node 71.08293051596959 0.00017589 deg
peri 41.14608148684254 0.00017742 deg
M 9.763435080689973 2.3072e-05 deg
tp 2458945.666161435528
(2020-Apr-06.16616144)
0.00012946 TDB
period 2021.848019684373
5.54
1.9198e-05
5.256e-08
d
yr
n .1780549262333768 1.6907e-09 deg/d
Q 3.494363732359251 2.212e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1162  
   data-arc span      17947 days (49.14 yr)  
   first obs. used      1971-03-24  
   last obs. used      2020-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55844  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 04:22:23  

Additional Information
 Earth MOID = 1.78093 au 
 Jupiter MOID = 1.60452 au 
 T_jup = 3.203 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456517.5 (2013-Aug-13.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1163416173421371 4.0877e-08  
q 2.763162348493775 1.3158e-07 au
tp 2456933.370842996937
(2014-Oct-02.87084300)
0.00012533 TDB
node 71.14324722816404 0.00017562 deg
peri 42.77164761519257 0.00017713 deg
i 1.723528228525705 4.4319e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1162  
   data-arc span      17947 days (49.14 yr)  
   first obs. used      1971-03-24  
   last obs. used      2020-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55844  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 04:22:23  

Additional Information
 Jupiter MOID = 1.60452 au 
 T_jup = 3.203 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.670954146630729E-15 -5.332486022646619E-15 1.052767918291396E-12 9.705895934623617E-15 2.083802659780456E-13 -3.557913500046233E-16
q -5.332486022646619E-15 1.73127496318587E-14 -3.178328993181724E-12 -3.213452956363062E-14 -6.451541103065339E-13 1.249908818186166E-15
tp 1.052767918291396E-12 -3.178328993181724E-12 1.570794509513066E-8 2.613531665772563E-11 2.930434061248725E-9 -3.248581681884576E-13
node 9.705895934623617E-15 -3.213452956363062E-14 2.613531665772563E-11 3.08428683803409E-8 -3.082342509338649E-8 -8.286869679403182E-11
peri 2.083802659780456E-13 -6.451541103065339E-13 2.930434061248725E-9 -3.082342509338649E-8 3.13733829640085E-8 8.275611143035372E-11
i -3.557913500046233E-16 1.249908818186166E-15 -3.248581681884576E-13 -8.286869679403182E-11 8.275611143035372E-11 1.96414519834237E-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 14.1   n/a MPO337630  
diameter diameter 7.526 km 0.184 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.086   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46472 (2155 T-1)          Discovered 1971-Mar-25 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2155 T-1 = 1999 GE27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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