ADAM replied to the topic 'can't take short exposure with SX-694' in the forum. 2 months ago

My raw images taken in SII with an exposure time of 60 "have a very low signal. When I calibrated them with my old master bias the result was catastrophic.
Indeed I had made this one with INDI but in LIGHT mode and not BIAS. Result, even with an exposure time of 0.001 secs, in reality the exposure was of the order of 1 sec.

I have just done a bias, but in BIAS mode, and this time actually no matter how long it takes, I see in the FITS header a duration of 0.0001 sec.
So I have calibrated my images again with this new bias, and this time I have a correct result.

The error came from the fact that I had forgotten to check the box BIAS :)

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ADAM replied to the topic 'can't take short exposure with SX-694' in the forum. 2 months ago

Thank you very much Peter

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ADAM replied to the topic 'can't take short exposure with SX-694' in the forum. 2 months ago

Thank you for the idea, but the locale is ok.
The duration is well taken into account with my ASI178MM, and the bias obtained with this last camera are correct.

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ADAM created a new topic ' can't take short exposure with SX-694' in the forum. 2 months ago

I can not make bias with the SX694.
Whether it's in 1 second or 1/1000 second, the picture is the same, with a much too high background level.
With no Windows PC I can not use the software provided by Starlight to generate my bias ...
Is it a driver or configuration problem?

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ADAM replied to the topic 'Issue with Polar Alignment' in the forum. 3 months ago

I have the same WCS problem, but this is an error and not a warning.
Curiously the first 2 captures of the PA process work.
It is during the third capture that the error message appears.
I tried with astrometric resolution online, but the problem persists.

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ADAM replied to the topic 'Problem with indi driver 1.2' in the forum. 1 year ago

The problem becomes more complex :angry:
On a Fedora 23 with the same kernel (4.6.4) and the same libusbx, the camera works.
(and of course the same official version of indi-sx).
So the problem is elsewhere in the Fedora 24 ...

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ADAM replied to the topic 'Problem with indi driver 1.2' in the forum. 1 year ago

I tried with the official version. It does not work.
I also tried on another laptop with Fedora 24. Same result.
It seems to be the version of libusb that is involved :(

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ADAM replied to the topic 'Problem with indi driver 1.2' in the forum. 1 year ago

Oups ! I try tomorrow

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ADAM replied to the topic 'Problem with indi driver 1.2' in the forum. 1 year ago

The indi_sx package is not included in the Fedora distribution.
I will try with your release.

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ADAM replied to the topic 'Problem with indi driver 1.2' in the forum. 1 year ago

For various reasons I have compiled from source.
But I feel that the problem is the fedora version of the libusb ...

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ADAM created a new topic ' Problem with indi driver 1.2' in the forum. 1 year ago

Hello,

I am unable to connect my camera since the changeover to Fedora 24 with indi 1.2.0.
The connection works with the filter wheel (indi_sx_wheel).
But neither with the SX Lodestar, nor with the SX-694, both through indi_sx_ccd.

Adding debug options I see these messages :
2016-07-19T17:26:17: Driver indi_sx_ccd: sxOpen: libusb_open -> LIBUSB_ERROR_IO

And from /var/log/messages :
Jul 19 19:26:17 rama kernel: usb 3-4: reset high-speed USB device number 34 using xhci_hcd
Jul 19 19:26:17 rama audit: ANOM_ABEND auid=501 uid=0 gid=0 ses=60 pid=32141 comm="indi_sx_ccd" exe="/v0/opt/bin/indi_sx_ccd" sig=11
Jul 19 19:26:17 rama kernel: usb 3-4: USB disconnect, device number 34
Jul 19 19:26:17 rama kernel: indi_sx_ccd[32141]: segfault at 40 ip 00007f93b6b92f32 sp 00007ffe812a76e0 error 4 in libusb-1.0.so.0.1.0[7f93b6b88000+17000]
Jul 19 19:26:17 rama abrt-hook-ccpp: Process 32141 (indi_sx_ccd) of user 0 killed by SIGSEGV - dumping core

Any idea ?

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