| 1991-10-22 00 | 1992-02-18 07 | Datawell Mark 1 directional buoy | 30010 | NA-274 | 34 28.400' | 120 46.900' |
| 1993-05-14 03 | 1993-09-16 10 | Datawell Mark 1 directional buoy | 30103 | NA-277 | 34 27.800' | 120 41.800' |
| 1995-11-30 17 | 1996-03-15 10 | Datawell Mark 1 directional buoy | 30154 | NA-278 | 34 28.500' | 120 41.400' |
| 1998-03-19 10 | 1998-09-30 13 | Datawell Mark 2 directional buoy | 30261 | NA-279 | 34 28.800' | 120 41.900' |
| 1998-10-07 11 | 1999-10-06 11 | Datawell Mark 2 directional buoy | 30285 | NA-281 | 34 28.900' | 120 41.900' |
| 1999-10-07 03 | 2000-12-06 12 | Datawell Mark 2 directional buoy | 30285 | NA-415 | 34 27.500' | 120 46.800' |
| 2000-12-06 14 | 2001-12-17 12 | Datawell Mark 2 directional buoy | 30261 | NA-285 | 34 27.467' | 120 46.820' |
| 2001-12-17 13 | 2002-12-03 10 | Datawell Mark 2 directional buoy | 30282 | B1536CG-40-01 | 34 27.467' | 120 46.820' |
| 2002-12-03 14 | 2004-03-30 12 | Datawell Mark 2 directional buoy | 30399 | B1538CG-40-01 | 34 27.360' | 120 46.980' |
| 2004-03-30 17 | 2004-04-04 16 | Datawell Mark 2 directional buoy | 30250 | B3002 | 34 27.360' | 120 46.950' |
| 2004-04-04 16 | 2004-04-05 10 | Datawell Mark 2 directional buoy | 30250 | B3002 | 34 27.360' | 120 46.950' |
| 2004-05-07 16 | 2005-07-01 09 | Datawell Mark 2 directional buoy | 30404 | B1587CG-40-03 | 34 27.282' | 120 46.914' |
| 2005-07-01 15 | 2007-11-13 10 | Datawell Mark 3 directional buoy | 30507 | 43084 | 34 27.264' | 120 46.938' |
| 2007-11-27 13 | 2008-12-17 11 | Datawell Mark 3 directional buoy | 30605 | 43208 | 34 27.340' | 120 47.000' |
| 2009-02-27 14 | 2010-10-13 09 | Datawell Mark 3 directional buoy | 30635 | 43237 | 34 27.243' | 120 46.829' |
| 2010-10-13 12 | 2010-11-26 10 | Datawell Mark 3 directional buoy | 30253 | 43290 | 34 27.243' | 120 46.829' |
| 2010-12-03 12 | 2012-07-18 08 | Datawell Mark 3 directional buoy | 30253 | 43290 | 34 27.243' | 120 46.829' |
| 2012-07-18 12 | 2013-11-01 13 | Datawell Mark 3 directional buoy | 30254 | 70149 | 34 27.480' | 120 46.938' |
| 2013-11-01 15 | 2015-07-09 08 | Datawell Mark 3 directional buoy | 30808 | 43253 | 34 27.480' | 120 46.938' |
| 2015-07-09 09 | 2016-03-03 06 | Datawell Mark 3 directional buoy | 30402 | 70437 | 34 27.262' | 120 46.980' |
| 2016-06-03 08 | 2018-10-04 12 | Datawell Mark 3 directional buoy | 30282 | 70493 | 34 27.262' | 120 46.980' |
| 2018-10-04 13 | 2019-06-17 18 | Datawell Mark 3 directional buoy | 30959 | 70472 | 34 27.098' | 120 46.790' |
| 2019-06-19 12 | 2022-08-02 07 | Datawell Mark 3 directional buoy | 30959 | 70472 | 34 27.099' | 120 46.789' |
| 2022-08-02 11 | active | Datawell Mark 3 directional buoy | 30978 | 70505 | 34 27.099' | 120 46.789' |
