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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2051848179538862 3.4258e-08  
a 2.450900075495369 7.8238e-09 au
q 1.948012589681686 8.1808e-08 au
i 6.378867820289448 3.2713e-06 deg
node 123.3063481888859 3.4273e-05 deg
peri 264.6869331065882 3.4891e-05 deg
M 116.668663655383 9.4953e-06 deg
tp 2457146.308965411301
(2015-May-03.80896541)
3.5606e-05 JED
period 1401.479774679732
3.84
6.7108e-06
1.837e-08
d
yr
n .2568713487729551 1.23e-09 deg/d
Q 2.953787561309052 9.4292e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1924  
   data-arc span      32195 days (88.15 yr)  
   first obs. used      1928-02-25  
   last obs. used      2016-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52856  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:35:30  

Additional Information
 Earth MOID = .963651 au 
 Jupiter MOID = 2.5169 au 
 T_jup = 3.458 
[ 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 LCDB (Rev. 2016-February); Warner et al., 2009 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 ]
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