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1534 Nasi (1939 BK)
Classification: Main-belt Asteroid          SPK-ID: 2001534
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2519654617263349 2.7999e-08  
a 2.728845919495631 8.6344e-09 au
q 2.041270997409889 7.6054e-08 au
i 9.793860731283493 4.3662e-06 deg
node 62.13340257050895 2.3513e-05 deg
peri 42.73509017665036 2.5569e-05 deg
M 305.3833102175664 1.0184e-05 deg
tp 2458850.298497999706
(2020-Jan-01.79849800)
4.7077e-05 TDB
period 1646.519765993173
4.51
7.8147e-06
2.14e-08
d
yr
n .2186429871267593 1.0377e-09 deg/d
Q 3.416420841581373 1.081e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2296  
   data-arc span      34674 days (94.93 yr)  
   first obs. used      1924-12-22  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41826  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:23:23  

Additional Information
 Earth MOID = 1.07002 au 
 Jupiter MOID = 1.82548 au 
 T_jup = 3.288 
[ show covariance matrix ]

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 11.9   n/a MPO452181  
diameter diameter 22.12 km 0.9 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
rotation period rot_per 7.94 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Sauppe, J.; Torno, S.; Lemke-Oliver, R.; Ditteon, R. (2007) Minor Planet Bull. 34, 119-122.]
[Galad, A. (2010) Astron. Astrophys. 514, A55.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.0754   0.006 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
SMASSII spectral type spec_B Cgh   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)

1534 Nasi (1939 BK)          Discovered 1939-Jan-20 by Vaisala, Y. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1939 BK = 1933 UQ = 1957 EA = 1960 UB = 1962 JA = A915 VB = A924 WE = A924 YE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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