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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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2513715445278573 3.6203e-08  
a 2.728915048533199 1.3534e-08 AU
q 2.042943457898096 9.9514e-08 AU
i 9.79010480469349 5.3888e-06 deg
node 62.17689415463373 2.5612e-05 deg
peri 42.98453785712748 2.7698e-05 deg
M 315.2163276383058 1.1378e-05 deg
tp 2457205.333343607655
(2015-Jul-01.83334361)
5.2936e-05 JED
period 1646.58233257863
4.51
1.225e-05
3.354e-08
d
yr
n .218634679163733 1.6265e-09 deg/d
Q 3.414886639168302 1.6936e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1005  
   data-arc span      32717 days (89.57 yr)  
   first obs. used      1924-12-22  
   last obs. used      2014-07-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51905  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 13:55:57  

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 Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) 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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