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364 Isara (1893 T)
Classification: Main-belt Asteroid          SPK-ID: 2000364
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1490088955561117 3.8055e-08  
a 2.22048672817805 5.8362e-09 AU
q 1.889614453215235 8.5307e-08 AU
i 6.00493059400228 4.9439e-06 deg
node 105.5684389944504 4.5397e-05 deg
peri 312.91160404 4.8745e-05 deg
M 324.6858582077087 1.9609e-05 deg
tp 2456919.054175678173
(2014-Sep-18.55417568)
6.5987e-05 JED
period 1208.566910536072
3.31
4.7648e-06
1.305e-08
d
yr
n .2978734539739454 1.1744e-09 deg/d
Q 2.551359003140866 6.7059e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      1187  
   data-arc span      41405 days (113.36 yr)  
   first obs. used      1900-04-29  
   last obs. used      2013-09-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60699  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:11:07  

Additional Information
 Earth MOID = .907155 AU 
 T_jup = 3.628 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.86 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 15
diameter diameter 27.99 km 1.0 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 15
rotation period rot_per 9.156 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Published Reference List:
[Yang, X.-y.; Zhang, Y.-y.; Li, X.-q. (1965) Acta Astron. Sin. 13, 66-74.]
[Warner, B.D. (2009) Minor Planet Bul. 36, 172-176.]
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Kryszczynska, A.; Colas, F.; Polinska, M.; Hirsch, R.; et al. (2012) Astron. Astrophys. 546, A72.]
geometric albedo albedo 0.2566   0.020 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 15
B-V BV .912 mag .069 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=2; phase (min.=17.26, mean=21.88, max.=26.49) deg.
U-B UB .538 mag .021 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=2; phase (min.=17.26, mean=21.88, max.=26.49) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

364 Isara (1893 T)          Discovered 1893-Mar-19 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1893 T = 1976 AB 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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