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1403 Idelsonia (1936 QA)
Classification: Main-belt Asteroid          SPK-ID: 2001403
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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2948821213361664 3.5069e-08  
a 2.715419731221308 8.1066e-09 au
q 1.914691000560686 9.4706e-08 au
i 10.18247663335407 3.8332e-06 deg
node 156.9783093392636 1.9669e-05 deg
peri 192.4091877246636 2.0366e-05 deg
M 236.2717327948304 7.3638e-06 deg
tp 2459562.220548143683
(2021-Dec-13.72054814)
3.4813e-05 TDB
period 1634.383168046799
4.47
7.3189e-06
2.004e-08
d
yr
n .2202665856074772 9.8638e-10 deg/d
Q 3.516148461881929 1.0497e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2869  
   data-arc span      30667 days (83.96 yr)  
   first obs. used      1936-08-17  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41279  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:33:52  

Additional Information
 Earth MOID = .909447 au 
 Jupiter MOID = 1.91778 au 
 T_jup = 3.275 
[ 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 11.6   n/a MPO384760  
diameter diameter 26.531 km 0.172 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.458 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Almeida, R.; Angeli, C.A.; Duffard, R.; Lazzaro, D. (2004) Astron. Astrophys. 415, 403-406.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.072   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B Cgh   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

1403 Idelsonia (1936 QA)          Discovered 1936-Aug-13 by Neujmin, G. at Simeis
Provisional designation is associated with an independent discovery Aug. l7 by K. Reinmuth, Heidelberg, which was announced first.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
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