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1144 Oda (1930 BJ)
Classification: Outer Main-belt Asteroid          SPK-ID: 2001144
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09469752265987473 4.5538e-08  
a 3.748892817874502 3.0303e-08 au
q 3.39388195530439 1.7745e-07 au
i 9.742799906546949 5.2474e-06 deg
node 156.7317415215392 2.9607e-05 deg
peri 220.899087849808 3.9602e-05 deg
M 49.71229222770252 2.5248e-05 deg
tp 2457034.387758054554
(2015-Jan-11.88775805)
0.00018635 JED
period 2651.263926770088
7.26
3.2146e-05
8.801e-08
d
yr
n .1357842938098476 1.6464e-09 deg/d
Q 4.103903680444615 3.3173e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1546  
   data-arc span      31310 days (85.72 yr)  
   first obs. used      1930-03-29  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52161  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 12:37:20  

Additional Information
 Earth MOID = 2.40067 au 
 Jupiter MOID = 1.37692 au 
 T_jup = 3.054 
[ 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 9.9 mag n/a MPO265962  
diameter diameter 57.59 km 2.2 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 23
rotation period rot_per 44.0227 h n/a LCDB (Rev. 2015-December); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.0533   0.004 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 23
B-V BV .706 mag .055 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=2; phase (min.=9.76, mean=9.86, max.=9.96) deg.
U-B UB .249 mag .025 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=2; phase (min.=9.76, mean=9.86, max.=9.96) deg.
Tholen spectral type spec_T D   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

1144 Oda (1930 BJ)          Discovered 1930-Jan-28 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1930 BJ = 1959 CJ = 1967 EV 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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