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

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2513715213426049 3.4713e-08  
a 2.728915033214756 1.1638e-08 AU
q 2.042943509700858 9.6839e-08 AU
i 9.790104776164053 5.2614e-06 deg
node 62.17689168544222 2.438e-05 deg
peri 42.98454006726405 2.66e-05 deg
M 315.216335196298 1.0816e-05 deg
tp 2457205.333307313897
(2015-Jul-01.83330731)
5.0159e-05 JED
period 1646.582318714287
4.51
1.0534e-05
2.884e-08
d
yr
n .2186346810046531 1.3986e-09 deg/d
Q 3.414886556728654 1.4564e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1219  
   data-arc span      32940 days (90.18 yr)  
   first obs. used      1924-12-22  
   last obs. used      2015-02-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48493  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 13:36:24  

Additional Information
 Earth MOID = 1.07147 AU 
 T_jup = 3.288 
[ 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 11.8 mag n/a MPO265964  
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. 2015-Feb); Warner et al., 2009 Published Reference List:
[Sauppe, J.; Torno, S.; Lemke-Oliver, R.; Ditteon, R. (2007) Minor Planet Bul. 34, 119-122.]
[Galad, A. (2010) Astron. Astrophys. 514, A55.]
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 | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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