ecloud created a new topic ' Is GSC catalog required for CCD simulator?' in the forum. 1 week ago

I found this on sourceforge sourceforge.net/projects/indistarter/files/GSC/
So should a GSC package required for CCD simulator on Linux for the same?

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ecloud replied to the topic 'Still same ASI1600MM USB3.0 issue. Can't seem to figure it out.' in the forum. 2 weeks ago

New update:

NanoPC T4
USB3 port -> USB2.0 cable -> CEM60 Hub -> USB2.0 Cable -> ASI290 mini
USB2 port1 -> PL2302 USB to COM -> CEM60 com
USB2 port2 -> USB3.0 cable -> ASI290MC Pro

Capture 200S X 12, -12C, with guiding on, works good.

So I can give the result that:
Only true USB 3.0 connection will cause problem.
The USB2.0 cable will not lead to USB3.0 driver working, even on the USB3.0 port.
The MC Pro camera with non-power USB hub will cause problem.
The problem is complexity, it may be some memory leak of the USB3.0 driver, and also the MC Pro camera is sensitive to the USB power.

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ecloud replied to the topic '[ indi_gpsd ] Time is not pulled from gpsd?' in the forum. 4 weeks ago

Hi, this is not about 'How to get datetime from gpsd'.
This is to concern which time should be displayed on the panel of indi_gpsd.
Does this work as design or be a bug?
And which time will kstars use?
The system time is shown on the panel will make confusion.

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ecloud created a new topic ' [ indi_gpsd ] Time is not pulled from gpsd?' in the forum. 1 month ago

I have not setup ntpd yet. So my system time is not synchronized.
The UTC time in indi client seems to be system time, but not gpsd time.
Is it a bug?



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ecloud replied to the topic 'Still same ASI1600MM USB3.0 issue. Can't seem to figure it out.' in the forum. 1 month ago

petarm wrote: Hi all yep I think wouter had hit it on the head. A few weeks ago I did an update to Ubuntu and all of a sudden usb3 worked.

Another update 4 days ago and usb3 is shot again. Usb2 still works.

Only problem is how does one update anything without breaking something.

what did you update, kernel or some packages?
The kernel of these ARM boxes are not updated often.
For packages, you can easily find out which ones are related to usdb like libusb

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ecloud replied to the topic 'Still same ASI1600MM USB3.0 issue. Can't seem to figure it out.' in the forum. 1 month ago

All these research are based on our assumption.
So first we should know the software cause that leads to the dead loop of exposing.
Which ASI APIs are called when the expose time goes to 0 of the dead loop.
Then we can figure out which part of the camera is wrong at the time.

We need the help from dev team.
@knro

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ecloud replied to the topic 'Still same ASI1600MM USB3.0 issue. Can't seem to figure it out.' in the forum. 1 month ago

OK, the similar issue here.
Nano T4 with FirendllyDestop (64bit Ubuntu 18.04). ASI 294 MC Pro
USB2 cable - USB3 port on T4 == Download jam after 7~8 frames
USB2 cable - USB2 port on T4 == OK
USB3 cable - USB3 port on T4 == Download jam after 3~4 frames
USB2 cable - USB2 Hub - USB3 port on T4 == Download jam after 3~4 frames
USB2 cable - USB2 Hub - USB2 port on T4 == Download jam after 3~4 frames, BUT it was OK on once a night!
The USB2 Hub is that on the CEM60, not powered.

I guess the reason is because of power.
USB3 port needs more power and is not very stable with poor AC-IN power.
Multiple USB2 devices will have the same issue above.
Short cable needs less power.
USB2 needs less power.
Connect the guide camera to the USB port on ASI 294 MC Pro instead of the port on Nano T4, because the Hub on ASI 294 MC Pro is powered Hub.

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ecloud replied to the topic 'calling iOptron mount users' in the forum. 1 month ago

patdut wrote:

ecloud wrote:

patdut wrote: The CEM60 is a best value for the price. I use it in semi nomad way. I mean I get it from house to backyard each time I need or on the field. The weight of the mount (12kg) instead of the 17kg of my previous one is a plus and make it easy to handle. As I said I use it with the triptych Kstars/Ekos/INDI running indifferently on a PC or a Tinkerboard.
As fmozza I rarely use the handset.
The polar finder is enough accurate to set a polar alignment close to few arcs minute. I complete the manual polar align with the Ekos polar align function.
Guiding is really accurate from 0,15 arcsec to 0,5 arcsec RMS depending of the position of the telescope and the turbulence conditions.
The only thing that is a bit disturbing at the beginning is the clutch system (not really clutch) which is a engage/disengage system. But after a while it is a really good thing. It allows to do precise balance of the setup as it is free of friction when disengaged. Maybe the design of the mount helps a lot too.
A great plus too is the inboard USB hub that allows to minimize the number of wires from PC to mount.
As I am in a relatively protected zone from light pollution I have In my project to build a fixed observatory. And I think I will put a CEM120 inside it.


My CEM60 is No.12, the early version. I don't mind of to be the laboratory rat of ioptron. But saying the truth, CEM60 is not a well designed mount.
1. 4 ports on both side are blocked by the two knobs, around latitude 40. This will cause some problems of the plug.
2. DEC is not on the correct axis. This leads to a rotary torque.
3. USB Hub is not powered. This will cause some problem on small ARM box like RPi and others who does not have very stable USD power output.
4. DEC wire is outside.
5. Polar scope is not well collimated in the factory.
6. You are forced to return to latitude 0 in order to put the mount back into the case.
7. Casting quality.

So I'm considering to 'upgrade' to CEM40 which has fixed all these issues.


I have the number 422.
This is not the best mount of the world. None of the mounts can claim they are.
Hum the point 1 is the first that I don't understand. I don't experienced any problem with the plugs. I am at 45° of latitude.
I don't understand the topic about the DEC.
USB hub is a convenient facility. I use it connecting to a USB 3 of a PC and I also use it connecting to a Tinkerboard through a powered hub and it works fine.
DEC wire outside is not a problem, is it ?
Collimation of the polar scope is not so bad on mine. I am just few mns from the right position when only using it. I refine it with Ekos polar alignment.
Yes you have to return to latitude 0 to put the mount back. But on my Celestron and my previous AZ-EQ6 I had to return to 30° and I haven't any case to protect them.
Casting quality is the same problem for many mounts under 2000€. This is not the cast that make a bad or a good mount, this is what is inside the mount.
The first price of the CEM40 is quite at the same level as the CEM60 here in Europe. For certainly a more beautiful appearance and some (few) corrections but a less load capacity.
I do not personally think it's worth it to switch to a CEM40 when owning a CEM60. But this is only my opinion.


If you can not feel the rotary torque (usually an off axis counterweight is required), that means you do not have nearly 40 lb payload. So the load capacity of CEM40 is not an issue for you.
And I also believe the main reason that people buy CEM60 is not the load capacity, but some of the new designs on this mount, like hub, center balance, firmware, polar scope, etc. I really appreciate these new designs which also make this mount more like a prototype at the same time.
So, it's the time to see a stable release now:)
~~ I have heard some rumor of CEM65

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ecloud replied to the topic 'calling iOptron mount users' in the forum. 2 months ago

patdut wrote: The CEM60 is a best value for the price. I use it in semi nomad way. I mean I get it from house to backyard each time I need or on the field. The weight of the mount (12kg) instead of the 17kg of my previous one is a plus and make it easy to handle. As I said I use it with the triptych Kstars/Ekos/INDI running indifferently on a PC or a Tinkerboard.
As fmozza I rarely use the handset.
The polar finder is enough accurate to set a polar alignment close to few arcs minute. I complete the manual polar align with the Ekos polar align function.
Guiding is really accurate from 0,15 arcsec to 0,5 arcsec RMS depending of the position of the telescope and the turbulence conditions.
The only thing that is a bit disturbing at the beginning is the clutch system (not really clutch) which is a engage/disengage system. But after a while it is a really good thing. It allows to do precise balance of the setup as it is free of friction when disengaged. Maybe the design of the mount helps a lot too.
A great plus too is the inboard USB hub that allows to minimize the number of wires from PC to mount.
As I am in a relatively protected zone from light pollution I have In my project to build a fixed observatory. And I think I will put a CEM120 inside it.


My CEM60 is No.12, the early version. I don't mind of to be the laboratory rat of ioptron. But saying the truth, CEM60 is not a well designed mount.
1. 4 ports on both side are blocked by the two knobs, around latitude 40. This will cause some problems of the plug.
2. DEC is not on the correct axis. This leads to a rotary torque.
3. USB Hub is not powered. This will cause some problem on small ARM box like RPi and others who does not have very stable USD power output.
4. DEC wire is outside.
5. Polar scope is not well collimated in the factory.
6. You are forced to return to latitude 0 in order to put the mount back into the case.
7. Casting quality.

So I'm considering to 'upgrade' to CEM40 which has fixed all these issues.

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ecloud replied to the topic 'on ZWO ASI cameras offset - is it fixed or not? not' in the forum. 2 months ago

maxthebuilder wrote: Ecloud,
I have ASICAP on my Windows PC. Didn't check for the offset being fixed or not there. Maybe that's where it was fixed. I have no use for that application.
I was just reading the net and on the ZWO's official site it was stated that the offset was fixed at 50 (or 40?) for ASI294. I don't know where it was fixed and how but in INDI it's not fixed. Which is good.


The default offset by ASICAP is 8.

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ecloud created a new topic ' Update OS date/time from mount' in the forum. 2 months ago

It seems Kstars can update date/time from the Mount only for itself, but the OS date/time is not update for the same.
So may I know which api could get the date/time info from mount. And I'm thinking to write a python script to do it.
And if it is possible run my script when ekos start?

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ecloud replied to the topic 'on ZWO ASI cameras offset - is it fixed or not? not' in the forum. 2 months ago

Install an ASICAP on your Win/Mac computer.
Connect your ASI camera to the computer.
Open ASICAP.
Click "More" of the properties.
Then you can load the factory default setting. And the settings are truly saved to the camera.

BTW, I see very high (95) Blue of BW default setting. Don't know why but I always keep it.

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ecloud created a new topic ' How could I indetify whether my INDI is stable or night build?' in the forum. 3 months ago

The OS is Ubuntu 18.04

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