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JPL Small-Body Database Browser
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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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2519654623021506 2.8006e-08  
a 2.728845921538516 9.0629e-09 au
q 2.041270997366726 7.6057e-08 au
i 9.793860480541998 4.4149e-06 deg
node 62.13340444249948 2.4051e-05 deg
peri 42.73509055207834 2.6228e-05 deg
M 305.383307205445 1.0942e-05 deg
tp 2458850.298512056652
(2020-Jan-01.79851206)
5.0648e-05 TDB
period 1646.519767842115
4.51
8.2025e-06
2.246e-08
d
yr
n .2186429868812365 1.0892e-09 deg/d
Q 3.416420845710306 1.1346e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2241  
   data-arc span      34646 days (94.86 yr)  
   first obs. used      1924-12-22  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42113  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:05:46  

Additional Information
 Earth MOID = 1.07002 au 
 Jupiter MOID = 1.82548 au 
 T_jup = 3.288 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456047.5 (2012-Apr-30.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2509340191379887 2.8108e-08  
q 2.045357699736072 7.6324e-08 au
tp 2455557.004271710523
(2010-Dec-26.50427171)
4.5336e-05 TDB
node 62.1938541668843 2.4055e-05 deg
peri 42.83705255300115 2.6239e-05 deg
i 9.790495355961722 4.4125e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2241  
   data-arc span      34646 days (94.86 yr)  
   first obs. used      1924-12-22  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42113  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:05:46  

Additional Information
 Jupiter MOID = 1.82548 au 
 T_jup = 3.288 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.900378304931483E-16 -2.136756350003923E-15 -2.178136418230949E-14 4.524472110986961E-16 3.23694816339185E-15 -1.327276782832331E-16
q -2.136756350003923E-15 5.825414290352626E-15 1.102914505930222E-13 -4.444398349724809E-15 6.173430429005263E-15 1.057107876034886E-15
tp -2.178136418230949E-14 1.102914505930222E-13 2.055387959622977E-9 -5.769254798586797E-12 4.93166688444084E-10 -2.113488906026378E-12
node 4.524472110986961E-16 -4.444398349724809E-15 -5.769254798586797E-12 5.786532761347404E-10 -5.718623552961969E-10 -3.949875086312299E-11
peri 3.23694816339185E-15 6.173430429005263E-15 4.93166688444084E-10 -5.718623552961969E-10 6.884903143273183E-10 3.86583703407907E-11
i -1.327276782832331E-16 1.057107876034886E-15 -2.113488906026378E-12 -3.949875086312299E-11 3.86583703407907E-11 1.946981238420657E-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 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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