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1144 Oda (1930 BJ)
Classification: Outer Main-belt Asteroid          SPK-ID: 2001144
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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08822685832940487 3.7606e-08  
a 3.776491839486244 2.4428e-08 au
q 3.443303828981737 1.4347e-07 au
i 9.765541329560108 3.9358e-06 deg
node 156.2168841152538 2.2819e-05 deg
peri 217.7868899467004 3.0705e-05 deg
M 296.9765457040008 2.2549e-05 deg
tp 2459669.778821515463
(2022-Mar-31.27882152)
0.00017037 TDB
period 2680.595305869982
7.34
2.6009e-05
7.121e-08
d
yr
n .1342985266040234 1.303e-09 deg/d
Q 4.10967984999075 2.6583e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3072  
   data-arc span      33174 days (90.83 yr)  
   first obs. used      1930-01-28  
   last obs. used      2020-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43871  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:52:56  

Additional Information
 Earth MOID = 2.44819 au 
 Jupiter MOID = 1.36877 au 
 T_jup = 3.050 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456506.5 (2013-Aug-02.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09563497177285095 3.6682e-08  
q 3.39396718031651 1.3908e-07 au
tp 2457034.100693144012
(2015-Jan-11.60069314)
0.00015097 TDB
node 156.732144209049 2.2987e-05 deg
peri 220.8582889646828 3.0268e-05 deg
i 9.740087024553883 3.9333e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3072  
   data-arc span      33174 days (90.83 yr)  
   first obs. used      1930-01-28  
   last obs. used      2020-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43871  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:52:56  

Additional Information
 Jupiter MOID = 1.36877 au 
 T_jup = 3.050 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.345604950334902E-15 -5.045720759253686E-15 2.39983740707909E-13 -1.876896913184085E-15 2.163624919779424E-14 -2.867035844591796E-16
q -5.045720759253686E-15 1.934333574770687E-14 -1.545732111765292E-14 1.280676247347282E-14 1.311819593968239E-14 2.038370045109254E-15
tp 2.39983740707909E-13 -1.545732111765292E-14 2.279144368168921E-8 -7.972005790451669E-12 2.999745140425257E-9 -9.48509098835352E-13
node -1.876896913184085E-15 1.280676247347282E-14 -7.972005790451669E-12 5.283930792182079E-10 -5.216270326636345E-10 1.146089373959736E-11
peri 2.163624919779424E-14 1.311819593968239E-14 2.999745140425257E-9 -5.216270326636345E-10 9.161789877699559E-10 -1.141264746253547E-11
i -2.867035844591796E-16 2.038370045109254E-15 -9.48509098835352E-13 1.146089373959736E-11 -1.141264746253547E-11 1.547092562626286E-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 9.98   n/a E2021B10  
diameter diameter 56.337 km 0.501 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
rotation period rot_per 648. 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:
[Pilcher, F. (2018) Minor Planet Bull. 45, 335-336.]
geometric albedo albedo 0.061   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
B-V BV 0.706   0.055 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=9.76, mean=9.86, max.=9.96) deg.
U-B UB 0.249   0.025 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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