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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2950100068688888 3.492e-08  
a 2.715381326398842 8.0314e-09 au
q 1.914316662646268 9.4371e-08 au
i 10.18266639888405 3.8205e-06 deg
node 156.9792242088682 1.9596e-05 deg
peri 192.406239631163 2.029e-05 deg
M 280.3424269176757 7.4447e-06 deg
tp 2459562.133985222116
(2021-Dec-13.63398522)
3.469e-05 TDB
period 1634.348494968775
4.47
7.2509e-06
1.985e-08
d
yr
n .2202712586135908 9.7725e-10 deg/d
Q 3.516445990151417 1.0401e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2914  
   data-arc span      30891 days (84.57 yr)  
   first obs. used      1936-08-17  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41244  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 12:24:07  

Additional Information
 Earth MOID = .907299 au 
 Jupiter MOID = 1.91823 au 
 T_jup = 3.275 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456834.5 (2014-Jun-26.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2912757395606214 3.4826e-08  
q 1.929335363819453 9.4086e-08 au
tp 2456289.082947905317
(2012-Dec-27.58294791)
2.9668e-05 TDB
node 156.9983996757181 1.9626e-05 deg
peri 192.4049390858343 2.0349e-05 deg
i 10.16030402084575 3.8096e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2914  
   data-arc span      30891 days (84.57 yr)  
   first obs. used      1936-08-17  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41244  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 12:24:07  

Additional Information
 Jupiter MOID = 1.91823 au 
 T_jup = 3.275 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.212846733055082E-15 -3.270490008923007E-15 4.321507340724971E-13 -3.584017852925734E-16 8.186639748762907E-14 -2.583224056808459E-15
q -3.270490008923007E-15 8.852227118538419E-15 -1.150894195057264E-12 -9.641939743443328E-16 -2.152948774807508E-13 6.665665528858271E-15
tp 4.321507340724971E-13 -1.150894195057264E-12 8.801719191268184E-10 1.122194865578078E-12 1.759682600290089E-10 -1.911838373202894E-12
node -3.584017852925734E-16 -9.641939743443328E-16 1.122194865578078E-12 3.8519638321922E-10 -3.787841858086939E-10 2.454472540755024E-11
peri 8.186639748762907E-14 -2.152948774807508E-13 1.759682600290089E-10 -3.787841858086939E-10 4.140965396288293E-10 -2.455192969534555E-11
i -2.583224056808459E-15 6.665665528858271E-15 -1.911838373202894E-12 2.454472540755024E-11 -2.455192969534555E-11 1.451268485941181E-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 11.68   n/a E2021B10  
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. 2020-October); 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

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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