Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
397 Vienna (1894 BM)
Classification: Main-belt Asteroid          SPK-ID: 2000397
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 78 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2453133084479703 4.0402e-08  
a 2.636512411646106 9.019e-09 AU
q 1.989740829181063 1.0855e-07 AU
i 12.82975345201582 5.0949e-06 deg
node 228.1777017976532 2.0944e-05 deg
peri 139.4098888872398 2.2532e-05 deg
M 64.79512374135604 9.0944e-06 deg
tp 2456719.061841843627
(2014-Mar-02.56184184)
3.8885e-05 JED
period 1563.662990146084
4.28
8.0234e-06
2.197e-08
d
yr
n .2302286376723461 1.1813e-09 deg/d
Q 3.283283994111149 1.1231e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1278  
   data-arc span      42364 days (115.99 yr)  
   first obs. used      1898-10-23  
   last obs. used      2014-10-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56015  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 12:42:22  

Additional Information
 Earth MOID = 1.00877 AU 
 T_jup = 3.319 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.31 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 5
diameter diameter 43.34 km 1.8 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 5
rotation period rot_per 15.48 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Harris, A.W.; Young, J.W. (1983) Icarus 54, 59-109.]
[Ruthroff, J.C. (2010) Minor Planet Bul. 37, 32-33.]
geometric albedo albedo 0.1776   0.015 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 5
B-V BV .823 mag .028 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=4; phase (min.=5.45, mean=10.38, max.=21.21) deg.
U-B UB .362 mag .030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=4; phase (min.=5.45, mean=10.38, max.=21.21) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B K   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)

397 Vienna (1894 BM)          Discovered 1894-Dec-19 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1894 BM = 1941 WA1 = 1951 AV1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Dec-23 02:59 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin