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5408 The (1232 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2005408
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1392702173797341 1.1273e-08  
a 2.260538398476353 5.8119e-09 au
q 1.945712724325315 2.5335e-08 au
i 4.080412662513341 8.6374e-07 deg
node 207.1641637525782 5.5962e-06 deg
peri 341.593197364209 8.5394e-06 deg
M 221.9342904402194 5.7389e-06 deg
tp 2459676.601542062153
(2022-Apr-07.10154206)
2.0832e-05 TDB
period 1241.412916276381
3.40
4.7875e-06
1.311e-08
d
yr
n .2899921494935145 1.1184e-09 deg/d
Q 2.575364072627391 6.6213e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2726  
   data-arc span      24473 days (67.00 yr)  
   first obs. used      1954-03-06  
   last obs. used      2021-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .444  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 17:41:38  

Additional Information
 Earth MOID = .946003 au 
 Jupiter MOID = 2.38352 au 
 T_jup = 3.604 
[ 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 13.76   n/a E2021B10  
diameter diameter 4.233 km 0.569 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 7.374 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.352   0.160 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

5408 The (1232 T-1)          Discovered 1971-Mar-25 by van Houten and Gehrels at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1232 T-1 = 1954 EL = 1978 JA2 = 1986 UP2 = 1988 GA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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