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1374 Isora (1935 UA)
Classification: Mars-crossing Asteroid          SPK-ID: 2001374
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 48 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2776694909447212 1.9131e-08  
a 2.251092215529042 4.2502e-09 au
q 1.626032585973468 4.3737e-08 au
i 5.295541858873348 7.1276e-07 deg
node 302.4753287990644 9.557e-06 deg
peri 61.06684709561739 9.8113e-06 deg
M 150.8003732045304 3.3703e-06 deg
tp 2458879.740735226544
(2020-Jan-31.24073523)
1.0729e-05 TDB
period 1233.639754101453
3.38
3.4938e-06
9.566e-09
d
yr
n .291819389577157 8.2646e-10 deg/d
Q 2.876151845084617 5.4303e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2592  
   data-arc span      31275 days (85.63 yr)  
   first obs. used      1935-10-21  
   last obs. used      2021-06-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40698  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:18:17  

Additional Information
 Earth MOID = .630843 au 
 Jupiter MOID = 2.61276 au 
 T_jup = 3.570 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.3   n/a MPO492766  
rotation period rot_per 36.699 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:
[Stephens, R.D. (2014) Minor Planet Bull. 41, 171-175.]
SMASSII spectral type spec_B Sq   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)

1374 Isora (1935 UA)          Discovered 1935-Oct-21 by Delporte, E. at Uccle
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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