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2733 Hamina (1938 DQ)
Classification: Main-belt Asteroid          SPK-ID: 2002733
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1375751744460943 3.0891e-08  
a 2.346756482339339 7.5661e-09 au
q 2.023901049899002 7.4725e-08 au
i 10.41197785895221 3.3849e-06 deg
node 121.4774029053333 2.1853e-05 deg
peri 353.2149867202912 2.6773e-05 deg
M 352.1855352650023 1.4747e-05 deg
tp 2459029.003435015051
(2020-Jun-28.50343502)
5.3796e-05 TDB
period 1313.108057096051
3.60
6.3503e-06
1.739e-08
d
yr
n .274158701604606 1.3259e-09 deg/d
Q 2.669611914779676 8.607e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2197  
   data-arc span      30205 days (82.70 yr)  
   first obs. used      1938-02-19  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42184  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:06:34  

Additional Information
 Earth MOID = 1.04057 au 
 Jupiter MOID = 2.42018 au 
 T_jup = 3.526 
[ 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 12.9   n/a MPO502179  
diameter diameter 7.366 km 0.287 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 93.23 h n/a LCDB (Rev. 2019-August); 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:
[Pravec, P.; Wolf, M.; Sarounova, L. (2017) http://www.asu.cas.cz/~ppravec/neo.htm]
[Sada, P.V.; Loera-Gonzalez, P.; Olguin, L.; Saucedo-Morales. J.C.; et al. (2018) Minor Planet Bull. 45, 122-124.]
geometric albedo albedo 0.221   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B Ld   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)

2733 Hamina (1938 DQ)          Discovered 1938-Feb-22 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1938 DQ = 1951 YE2 = 1981 AQ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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