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 ]  
1689 Floris-Jan (1930 SO)
Classification: Main-belt Asteroid          SPK-ID: 2001689
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2054711105342339 6.1324e-08  
a 2.450080560361972 9.1529e-09 AU
q 1.94665978672606 1.4835e-07 AU
i 6.380760174097249 4.5717e-06 deg
node 123.3148513208288 5.9585e-05 deg
peri 264.5084550602654 6.0346e-05 deg
M 271.234178725386 1.2483e-05 deg
tp 2457145.891979533203
(2015-May-03.39197953)
4.9564e-05 JED
period 1400.776907671252
3.84
7.8494e-06
2.149e-08
d
yr
n .2570002389591707 1.4401e-09 deg/d
Q 2.953501333997885 1.1034e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1459  
   data-arc span      31123 days (85.21 yr)  
   first obs. used      1928-02-25  
   last obs. used      2013-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50852  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 13:50:10  

Additional Information
 Earth MOID = .9623 AU 
 T_jup = 3.459 
[ 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 11.82 mag n/a PDS3 (MPC 17263)  
rotation period rot_per 145. h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Published Reference List:
[Schober, H.J.; Surdej, J.; Harris, A.W.; Young, J.W. (1982) Astron. Astrophys. 115, 257-262.]
[Harris, A.W.; Young, J.W. (1989) Icarus 81, 314-364.]
B-V BV .685 mag .021 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=2; phase (min.=6.66, mean=7.22, max.=7.78) deg.
U-B UB .265 mag .021 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=2; phase (min.=6.66, mean=7.22, max.=7.78) deg.

1689 Floris-Jan (1930 SO)          Discovered 1930-Sep-16 by Van Gent, H. at Johannesburg (LS)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1930 SO = 1926 PG = 1928 DN = 1934 VV = 1943 AC = 1949 OF = 1949 ON1 = 1949 OY = 1951 CW = 1966 BP 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Apr-16 10:14 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin