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16591 (1992 SY17)
Classification: Mars-crossing Asteroid          SPK-ID: 2016591
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2800187812720388 4.789e-08  
a 2.289751106907734 1.5415e-08 au
q 1.648577792535129 1.0635e-07 au
i 8.413811510468143 6.8056e-06 deg
node 239.5428443119253 3.3556e-05 deg
peri 72.04557527779859 3.837e-05 deg
M 294.9324571582363 2.439e-05 deg
tp 2457629.240333124043
(2016-Aug-28.74033312)
8.7506e-05 JED
period 1265.554473524722
3.46
1.278e-05
3.499e-08
d
yr
n .2844602958870324 2.8726e-09 deg/d
Q 2.93092442128034 1.9731e-08 au
  Orbit Determination Parameters
   # obs. used (total)      903  
   data-arc span      23226 days (63.59 yr)  
   first obs. used      1951-11-08  
   last obs. used      2015-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52501  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:34:21  

Additional Information
 Earth MOID = .65684 au 
 Jupiter MOID = 2.39811 au 
 T_jup = 3.532 
[ 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 14.2 mag n/a MPO313552  
rotation period rot_per 2.73728 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2013) http://www.asu.cas.cz/~ppravec/neo.htm]

16591 (1992 SY17)          Discovered 1992-Sep-30 by Holt, H. E. at Palomar
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1992 SY17 = 1985 QE 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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