6 hours of K1 AO Engineering
Tests Proposed:
1. Verify newest release of K1 AO WFC. The new features of this
release
include
* Better File I/O feedback (new SNL based File loads) (1/2 hour)
* Test Wavefront Sensor Focus Offloading work around (let WFC compute
time averages instead of SC) (1 hour)
* Test new release of PRC with the following new features: (1 hour)
Keyword interface between PRC and WFC
Socket interface between PRC and WFC
Both K1 and K2 supported by same version of PRC
These tests benefit both K1 IF and K2.
For K1, successful tests would be the completion of planned K1AO WFC
work,
achieving the milestone of providing a full featured stable AO system
on
K1. No more work would be done on K1AO in the near term.
For K2: These tests would provide information needed to decide on the
timing of upgrading K2 AO WFC to a similar EPICS based system. The
upgrade of K2 WFC is a critical component for the LGS-AO project
since it
would provide a superior platform upon which to make further
enhancements
required for LGS-AO.
In particular, the Focus Offloading work around would allow us to
proceed
with a possible K2 upgrade.
2. Characterize the severity of the WFC Telemetry stalls that are
responsible for the focus offloading problem (1/2 hour)
This test benefits both K1 and K2. Since both systems display
telemetry
stalls when configured for EPICS based WFC. While these tests are
performed on K1, the results are applicable to both K1 and K2. Data
gathered here can be used to develop solutions for both K1 and K2.
Without a solution to this problem, the K2 upgrade to the EPICS based
WFC
should not be done.
3. Look for tip/tilt offloading problems that could also be related to
telemetry stalls. (1/2 hour)
Same benefits as previous test.
4. Performance tests (1.5 hours)
* Take open / closed loop diagnostics to support computing disturbance
rejection
This test also provides documented performance measurements that can
be used to characterize K1 but can also indicate the type of
performance
we might expect on K2 after an upgrade to the EPICS based WFC.
5. Verify new release of OBS with FCS and WPS tracking shaper fix. (1
hour)
This test benefits K2.
This test would demonstrate that we have solved the problem with
initial
tracking demands of Wavefront sensor focus stages causing faults. K1
does
not use these features at all, but for the benefit of common software
on
K1 and K2, K1 runs the software that has these features, and tests of
them
benefit K2 LGS. (These focus stages are used to focus the wavefront
sensor
on the laser guide star)