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5599 (1991 SG1)
Classification: Main-belt Asteroid          SPK-ID: 2005599
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1324303238257866 5.5393e-08  
a 2.420403145229732 1.5168e-08 AU
q 2.099868372918006 1.3431e-07 AU
i 6.449785654656019 5.8583e-06 deg
node 265.7823567056861 5.6438e-05 deg
peri 196.9456625693799 6.2218e-05 deg
M 351.4492444820523 2.5989e-05 deg
tp 2457033.168709447539
(2015-Jan-10.66870945)
9.9359e-05 JED
period 1375.403071275821
3.77
1.2929e-05
3.54e-08
d
yr
n .2617414542095393 2.4605e-09 deg/d
Q 2.740937917541458 1.7177e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1064  
   data-arc span      9966 days (27.29 yr)  
   first obs. used      1987-09-18  
   last obs. used      2014-12-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51267  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 00:12:53  

Additional Information
 Earth MOID = 1.11749 AU 
 T_jup = 3.493 
[ 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 12.8 mag n/a MPO267730  
rotation period rot_per 3.62 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Willis, S. (2004) Minor Planet Bul. 31, 82-83.]

5599 (1991 SG1)          Discovered 1991-Sep-29 by Ueda and Kaneda at Kushiro (399)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1991 SG1 = 1951 AK1 = 1972 RE1 = 1987 SY20 = 1989 CE1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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