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2582 Harimaya-Bashi (1981 SA)
Classification: Outer Main-belt Asteroid          SPK-ID: 2002582
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06505825008455446 7.1874e-08  
a 3.201998192123044 4.012e-08 AU
q 2.993681792969612 2.4527e-07 AU
i 18.14578946778773 7.9336e-06 deg
node 56.32226015911576 2.3842e-05 deg
peri 237.3970752585844 7.0362e-05 deg
M 33.22079807327784 6.7138e-05 deg
tp 2456807.375393846535
(2014-May-29.87539385)
0.00039048 JED
period 2092.811198029939
5.73
3.9333e-05
1.077e-07
d
yr
n .1720174282032153 3.233e-09 deg/d
Q 3.410314591276477 4.273e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      914  
   data-arc span      27861 days (76.28 yr)  
   first obs. used      1938-04-23  
   last obs. used      2014-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51114  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 13:58:49  

Additional Information
 Earth MOID = 2.01735 AU 
 T_jup = 3.113 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.4 mag n/a MPO265971  
diameter diameter 28.87 km 3.8 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
rotation period rot_per 7.238 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Sauppe, J.; Torno, S.; Lemke-Oliver, R.; Ditteon, R. (2007) Minor Planet Bul. 34, 119-122.]
geometric albedo albedo 0.1337   0.043 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
SMASSII spectral type spec_B Xc   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)

2582 Harimaya-Bashi (1981 SA)          Discovered 1981-Sep-26 by Seki, T. at Geisei
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1981 SA = 1927 JC = 1935 WA = 1938 HB = 1958 VH = 1975 XT 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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