Bug 465483 - wrong import telescopius mosaic
Summary: wrong import telescopius mosaic
Status: REPORTED
Alias: None
Product: kstars
Classification: Applications
Component: general (show other bugs)
Version: 3.6.3
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: Jasem Mutlaq
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2023-02-08 16:42 UTC by Arnaud de Villèle
Modified: 2023-12-10 03:01 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed In:


Attachments
telescopius grid setup and kstars display after import (3.48 MB, image/png)
2023-02-08 16:42 UTC, Arnaud de Villèle
Details

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Description Arnaud de Villèle 2023-02-08 16:42:15 UTC
Created attachment 156079 [details]
telescopius grid setup and kstars display after import

SUMMARY
***
Hi all, 
not a crash, just a mix up in importing mosaic grid from telescopius
***

just import this mosaic grid from telescopius : 
Pane, RA, DEC, Position Angle (East), Pane width (arcmins), Pane height (arcmins), Overlap, Row, Column
Center, 06hr 31' 36", 05º 01' 12", 0.00, 82.20, 55.80, 10%, -, -
Pane 1, 06hr 31' 36", 05º 26' 19", 0.00, 82.20, 55.80, 10%, 1, 1
Pane 2, 06hr 31' 36", 04º 36' 05", 0.00, 82.20, 55.80, 10%, 2, 1

included screenshots of both the telescopius interface and the kstars display
Comment 1 Jasem Mutlaq 2023-02-08 18:24:20 UTC
The field of view is different. 

Telescopius: 1.37 x 1.77 degrees
Ekos: 2.6 x 0.9 degrees

Probably equipment is different.
Comment 2 Ron 2023-12-10 03:01:59 UTC
I ran into the same problem yesterday when trying to setup a mosaic for California Nebula (NGC1499)

Telescopius CSV (2W x 1H tile):
Pane, RA, DEC, Position Angle (East), Pane width (arcmins), Pane height (arcmins), Overlap, Row, Column
Center, 04hr 01' 17", 36º 17' 44", 0.00, 100.80, 100.80, 10%, -, -
Pane 1, 04hr 05' 02", 36º 17' 31", 0.56, 100.80, 100.80, 10%, 1, 1
Pane 2, 03hr 57' 31", 36º 17' 31", -0.56, 100.80, 100.80, 10%, 1, 2

Imported into Kstars Mosaic Planner (MP) after I initialized mosaic size to 1x1. First indication that something's wrong after import is MP says the size is now 1W x 2H. The generated ESL file has a fixed RA with changing DEC for each tile:

<Name>CalifNebulaNGC1499_AT80.8_OeNh_mosaic-Part_1</Name>
<Group></Group>
<Coordinates>
<J2000RA>4.02139</J2000RA>
<J2000DE>37.055</J2000DE>
</Coordinates>

<Name>CalifNebulaNGC1499_AT80.8_OeNh_mosaic-Part_2</Name>
<Group></Group>
<Coordinates>
<J2000RA>4.02139</J2000RA>
<J2000DE>35.5361</J2000DE>
</Coordinates>

But the Telescopius CSV is constant (almost) DEC with varying RA. 

Tile sizes do match up between Telescopius & MP but of course width and height are swapped:

<Overlap>10</Overlap>
<CenterRA>4.02139</CenterRA>
<CenterDE>36.2956</CenterDE>
<GridW>1</GridW>
<GridH>2</GridH>
<FOVW>101.25</FOVW>
<FOVH>192.38</FOVH>
<CameraFOVW>101.25</CameraFOVW>
<CameraFOVH>101.25</CameraFOVH>


I ran the planned mosaic and it indeed produced a 1W x 2H image, 90 degrees off from what I planned with Telescopius. 

Workaround is to manually enter in the center coordinates (from Telescopius) and mosaic size.