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IDProjectCategoryView StatusDate SubmittedLast Update
0002827CCdcielGeneralpublic25-05-07 07:2826-02-08 20:03
ReporterThomas Jaeger Assigned ToPatrick Chevalley  
PrioritylowSeveritytrivialReproducibilityhave not tried
Status resolvedResolutionfixed 
PlatformPCOSLinuxOS Version64bit
Product Version0.9 
Summary0002827: Something happened near pole - Unexpected time past meridian
DescriptionHello,
last night we want to image NGC188, which is located near celestial north pole. The sequence was started to run at 23:00:00. Goto and Platesolving were ok. Starting imaging failed with "Unexpected time past meridian 702". I was still awake and could handle this with disabling automatic merdianflip and start sequence again.

Thomas
TagsNo tags attached.

Relationships

related to 0002870 resolvedPatrick Chevalley Meridian flip near pole 

Activities

Thomas Jaeger

25-05-07 07:28

reporter  

Unexpected time past meridian.txt (10,085 bytes)    
CCDCiel LOG
2025-05-06T20:52:52.160  CCDciel Version beta 0.9.87-3346-d2dabe67 2024/03/18 16:16:05
2025-05-06T20:52:52.160  Compiliert mit: Lazarus 2.2.4.0 Free Pascal 3.2.2 Linux-x86_64-qt5
2025-05-06T20:52:52.160 1: CCDciel Version beta 0.9.87 Copyright (C) 2024 Patrick Chevalley. This is free software, you can redistribute it under certain conditions.
2025-05-06T20:52:52.160 1: This program comes with ABSOLUTELY NO WARRANTY; for details see Hilfe/Über
2025-05-06T20:52:52.160 9: Screen scaling : True
2025-05-06T20:52:52.160 9: Screen scale : 100%
2025-05-06T20:52:52.160 3: Verwende Konfigurationdatei /home/remote/.config/ccdciel/ccdciel_N200-ASI2600.conf
2025-05-06T20:52:52.421 9: Running on Qt version: 5.15.3
2025-05-06T20:52:52.421 9: Using a maximum of 4 parallel processor
2025-05-06T20:52:52.521 9: System: Linuxmint 21.3, Kernel: Linux 5.15.0-139-generic x86_64
2025-05-06T20:52:52.522 2: TCP/IP Server hört auf Port: 3277
2025-05-06T20:52:52.524 9: Local INDI Library: 2.0.9, Code 2.0.9-tgz. Protocol 1.7.
2025-05-06T20:53:41.263 9: ZWO CCD ASI2600MC Pro: Connecting to INDI server "localhost:7624" for device "ZWO CCD ASI2600MC Pro"
2025-05-06T20:53:41.287 2: Verbinden Kamera INDI "ZWO CCD ASI2600MC Pro" …
2025-05-06T20:53:41.434 9: ZWO CCD ASI2600MC Pro: INDI server send new device: "ZWO CCD ASI2600MC Pro"
2025-05-06T20:53:41.434 9: ZWO CCD ASI2600MC Pro: Exec: indi_asi_ccd, Version: 2.4, Interface: 2
2025-05-06T20:53:41.452 2: Verbinden Kamera INDI "ZWO CCD ASI2600MC Pro" …
2025-05-06T20:53:41.456 9: MoonLite: Connecting to INDI server "localhost:7624" for device "MoonLite"
2025-05-06T20:53:41.458 2: Verbinden Fokussierer INDI "MoonLite" …
2025-05-06T20:53:41.591 9: MoonLite: INDI server send new device: "MoonLite"
2025-05-06T20:53:41.591 9: MoonLite: Exec: indi_moonlite_focus, Version: 1.1, Interface: 8
2025-05-06T20:53:41.599 9: EQMod Mount: Connecting to INDI server "localhost:7624" for device "EQMod Mount"
2025-05-06T20:53:41.602 2: Verbinden Montierung INDI "EQMod Mount" …
2025-05-06T20:53:41.741 9: EQMod Mount: INDI server send new device: "EQMod Mount"
2025-05-06T20:53:41.741 9: EQMod Mount: Exec: indi_eqmod_telescope, Version: 1.3, Interface: 5
2025-05-06T20:53:41.872 1: Autoguider: Connecting
2025-05-06T20:53:41.943 1: Autoguider: PHD version: 2.6.13dev5
2025-05-06T20:53:41.951 3: Autoguider: Stopped
2025-05-06T20:53:42.071 1: Planetarium: Cartes du Ciel verbunden
2025-05-06T20:53:42.813 1: Kamera verbunden
2025-05-06T20:53:43.561 1: Fokussierer verbunden
2025-05-06T20:53:43.874 2: Kamerakühlung : Wahr
2025-05-06T20:53:43.882 3: ZWO CCD ASI2600MC Pro: Temperaturrampe zu -10.0°C gestartet
2025-05-06T20:53:43.968 1: Montierung verbunden
2025-05-06T20:53:44.996 2: Bildgröße x=0 y=0 Breite=6248 Höhe=4176
2025-05-06T20:53:44.998 3: ZWO CCD ASI2600MC Pro: Binning einstellen 1x1
2025-05-06T20:53:45.404 3: Uhrzeit wurde an das Teleskop gesendet.
2025-05-06T20:53:45.407 3: EQMod Mount: Montierung Fähigkeiten: CanSlew; CanSlewAsync; CanSync; EquatorialSystem: Local; CanSetTracking; CanMoveAxis; CanPark; CanPulseGuide; EQmod; GEM; 
...
2025-05-06T22:14:01.467 1: Starte Sequenz 
2025-05-06T22:14:01.487 1: Das Teleskop ist geparkt!
2025-05-06T22:14:01.507 1: Warte auf den Start der Sequenz NGC188 at 23:00:00
2025-05-06T22:14:01.521 1: Muss warten bis 23:00:00
2025-05-06T22:14:01.534 1: Pause: Muss warten bis 23:00:00
2025-05-06T22:14:12.621 1: Konfiguration gespeichert
2025-05-06T22:59:59.633 1: Starte Sequenz NGC188
2025-05-06T22:59:59.650 1: Unpark Teleskop
2025-05-06T22:59:59.669 3: EQMod Mount: Unpark
2025-05-06T23:00:08.953 1: Ziel initialisieren NGC188
2025-05-06T23:00:08.970 3: Objekt geht um 23:10 unter. In 0.2 Stunden.
2025-05-06T23:00:08.986 2: Autoguider stoppen
2025-05-06T23:00:11.201 3: EQMod Mount: Schwenke zu Local 00h49m55s/+85d23m37s
2025-05-06T23:01:53.163 3: EQMod Mount: Schwenk ist abgeschlossen
2025-05-06T23:01:58.243 3: ZWO CCD ASI2600MC Pro: Nehme Kontrollbild auf mit 8.0 Sekunden
2025-05-06T23:01:58.259 3: ZWO CCD ASI2600MC Pro: Binning einstellen 2x2
2025-05-06T23:02:09.441 3: Platesolving der Kontrollaufnahme
2025-05-06T23:02:09.501 3: Platesolving mit ASTAP ...
2025-05-06T23:02:11.820 2: Öffne Datei /home/remote/.config/ccdciel/tmp/ccdcielsolved.fits
2025-05-06T23:02:11.832 3: Astrometrie Lösung erfolgreich Platesolving in 2 Sekunden , Offset 16.76' , FOV 80.01x53.55' , 1.54"/Pixel
2025-05-06T23:02:11.854 3: Distanz zum Ziel: 16.73859 arcmin
2025-05-06T23:02:11.866 3: Schwenke mit Offsett 0.21679/0.09111
2025-05-06T23:02:11.880 3: EQMod Mount: Schwenke zu Local 01h02m55s/+85d29m05s
2025-05-06T23:02:22.209 3: EQMod Mount: Schwenk ist abgeschlossen
2025-05-06T23:02:27.311 3: ZWO CCD ASI2600MC Pro: Nehme Kontrollbild auf mit 8.0 Sekunden
2025-05-06T23:02:38.088 3: Platesolving der Kontrollaufnahme
2025-05-06T23:02:38.137 3: Platesolving mit ASTAP ...
2025-05-06T23:02:39.840 2: Öffne Datei /home/remote/.config/ccdciel/tmp/ccdcielsolved.fits
2025-05-06T23:02:39.852 3: Astrometrie Lösung erfolgreich Platesolving in 2 Sekunden , Offset 17.15' , FOV 80.00x53.54' , 1.54"/Pixel
2025-05-06T23:02:39.874 3: Distanz zum Ziel: 0.65045 arcmin
2025-05-06T23:02:39.891 2: Präzisionsschwenk beendet
2025-05-06T23:02:44.984 2: Starte Autoguider
2025-05-06T23:02:49.228 0: Autoguider: Star lost
2025-05-06T23:02:49.245 1: Autoguider: StarLost Stern verloren - Größe geändert
2025-05-06T23:02:49.258 1: Autoguider: StarLost Stern verloren - Größe geändert
2025-05-06T23:02:49.270 1: Autoguider: StarLost Stern verloren - Größe geändert
2025-05-06T23:02:50.744 0: Autoguider: Star Selected
2025-05-06T23:02:52.819 0: Autoguider: Looping Exposures
2025-05-06T23:02:57.560 3: Autoguider: Lock Position Set
2025-05-06T23:02:57.841 3: Autoguider: Looping Exposures
2025-05-06T23:03:01.336 3: Autoguider: Start Guiding
2025-05-06T23:03:03.479 3: Autoguider: Settling
2025-05-06T23:03:12.043 3: Autoguider: Settle Done
2025-05-06T23:03:12.901 3: Autoguider: Guiding
2025-05-06T23:03:17.891 1: Objekt NGC188, starte Plan adhoc*
2025-05-06T23:03:17.908 1: Starte Schritt OSC
2025-05-06T23:03:17.919 2: Starte Aufnahme
2025-05-06T23:03:17.932 0: Unexpected time past meridian 702
2025-05-06T23:03:17.944 1: Meridianflip abgebrochen!
2025-05-06T23:03:17.956 3: EQMod Mount: Stoppe Teleskopbewegung.
2025-05-06T23:03:17.970 1: Versuche nächstes Ziel in der Sequenz
2025-05-06T23:03:17.983 1: Nächstes Ziel versuchen
2025-05-06T23:03:17.997 1: Stoppe Plan adhoc*
2025-05-06T23:03:18.009 2: Aufnahme stoppen
2025-05-06T23:03:18.022 1: Meridianflip abgebrochen!, Aufnahme kann jetzt nicht gestartet werden
2025-05-06T23:03:18.022 9: Aufnahme kann jetzt nicht gestartet werden, Abbruch
2025-05-06T23:03:18.035 0: Aufnahme kann jetzt nicht gestartet werden
2025-05-06T23:03:18.047 2: Aufnahme stoppen
2025-05-06T23:03:18.176 9: Abbruch
2025-05-06T23:03:18.290 9: Abbruch



Devices Log

2025-05-06T22:59:59.958  EQMod Mount: [INFO] Mount is unparked.
2025-05-06T23:00:11.441  EQMod Mount: [INFO] Start Tracking (Sidereal).
2025-05-06T23:00:11.663  EQMod Mount: [INFO] Starting Goto RA=0.831957 DE=85.3936 (current RA=10.5112 DE=-30.6629)
2025-05-06T23:00:11.663  EQMod Mount: [INFO] Aligned Eqmod Goto RA=0.229788 DE=85.0867 (target RA=0.831957 DE=85.3936)
2025-05-06T23:00:11.663  EQMod Mount: [INFO] Setting Eqmod Goto RA=0.229788 DE=85.0867 (target RA=0.831957 DE=85.3936)
2025-05-06T23:00:11.663  EQMod Mount: [INFO] Slewing mount: RA increment = -6365391, DE increment = 3580523
2025-05-06T23:00:11.663  EQMod Mount: [INFO] Slewing to RA:  0:49:55 - DEC: 85:23:37
2025-05-06T23:00:34.297  EQMod Mount: [WARNING] Horizon Limits: Scope at AZ=139.420 ALT=-0.979 is outside limits. Nothing to abort.
2025-05-06T23:01:15.236  EQMod Mount: [INFO] Iterative Goto (1): RA diff = 63.81 arcsecs DE diff = 416618.41 arcsecs
2025-05-06T23:01:15.236  EQMod Mount: [INFO] Iterative goto (1): slew mount to RA increment = 8231, DE increment = 3579832
2025-05-06T23:01:52.087  EQMod Mount: [INFO] Iterative Goto (2): RA diff = 36.89 arcsecs DE diff = 0.14 arcsecs
2025-05-06T23:01:52.087  EQMod Mount: [INFO] Iterative goto (2): slew mount to RA increment = 4761, DE increment = 1
2025-05-06T23:01:53.289  EQMod Mount: [INFO] Iterative Goto (3): RA diff = 1.18 arcsecs DE diff = 0.03 arcsecs
2025-05-06T23:01:53.289  EQMod Mount: [INFO] Telescope slew is complete. Tracking TRACK_SIDEREAL...
2025-05-06T23:01:58.872  ZWO CCD ASI2600MC Pro: [INFO] Taking a 8 seconds frame...
2025-05-06T23:02:07.361  ZWO CCD ASI2600MC Pro: [INFO] Exposure done, downloading image...
2025-05-06T23:02:07.361  ZWO CCD ASI2600MC Pro: [INFO] Download complete.
2025-05-06T23:02:07.361  ZWO CCD ASI2600MC Pro: [WARNING] Telescope focal length is missing.
2025-05-06T23:02:07.361  ZWO CCD ASI2600MC Pro: [WARNING] Telescope aperture is missing.
2025-05-06T23:02:12.257  EQMod Mount: [INFO] Starting Goto RA=1.04874 DE=85.4847 (current RA=0.230144 DE=85.0867)
2025-05-06T23:02:12.257  EQMod Mount: [INFO] Aligned Eqmod Goto RA=0.446573 DE=85.1778 (target RA=1.04874 DE=85.4847)
2025-05-06T23:02:12.257  EQMod Mount: [INFO] Setting Eqmod Goto RA=0.446573 DE=85.1778 (target RA=1.04874 DE=85.4847)
2025-05-06T23:02:12.257  EQMod Mount: [INFO] Slewing mount: RA increment = -100418, DE increment = 2819
2025-05-06T23:02:12.257  EQMod Mount: [INFO] Slewing to RA:  1:02:55 - DEC: 85:29:05
2025-05-06T23:02:15.349  EQMod Mount: [INFO] Iterative Goto (1): RA diff = 3.05 arcsecs DE diff = 0.04 arcsecs
2025-05-06T23:02:15.349  EQMod Mount: [INFO] Telescope slew is complete. Tracking TRACK_SIDEREAL...
2025-05-06T23:02:27.518  ZWO CCD ASI2600MC Pro: [INFO] Taking a 8 seconds frame...
2025-05-06T23:02:36.029  ZWO CCD ASI2600MC Pro: [INFO] Exposure done, downloading image...
2025-05-06T23:02:36.029  ZWO CCD ASI2600MC Pro: [INFO] Download complete.
2025-05-06T23:02:36.029  ZWO CCD ASI2600MC Pro: [WARNING] Telescope focal length is missing.
2025-05-06T23:02:36.029  ZWO CCD ASI2600MC Pro: [WARNING] Telescope aperture is missing.
2025-05-06T23:03:18.185  EQMod Mount: [WARNING] Stopping Tracking (Sidereal).
Unexpected time past meridian.txt (10,085 bytes)   

Patrick Chevalley

25-05-31 11:42

administrator   ~0009411

This is related to the position of the object almost exactly below the pole (inferior meridian) at this time.

It is know the meridian flip procedure do not work in this case and normally the sequence for this object is stopped when it reach this position.
What is specific here is it try to start at this position, I will look if this can be managed.

This is a low priority for me because we generally not image objects at this unfavorable position.

Thomas Jaeger

25-05-31 16:55

reporter   ~0009414

Thanks for investigating this.

Patrick Chevalley

26-01-20 09:41

administrator   ~0009598

This is fixed in version 0.9.93-3914 available for testing from https://vega.ap-i.net/pub/ccdciel/daily_build/

The meridian flip below the pole is now implemented and the sequence can run without interruption.
I am interested if you can report a test of this function because this is no possible for me, my view to the north is too obstructed.

Patrick Chevalley

26-02-08 20:03

administrator   ~0009636

This is now available in the new release, please open a new issue if you get a problem with that.

Issue History

Date Modified Username Field Change
25-05-07 07:28 Thomas Jaeger New Issue
25-05-07 07:28 Thomas Jaeger File Added: Unexpected time past meridian.txt
25-05-31 11:42 Patrick Chevalley Assigned To => Patrick Chevalley
25-05-31 11:42 Patrick Chevalley Status new => assigned
25-05-31 11:42 Patrick Chevalley Note Added: 0009411
25-05-31 16:55 Thomas Jaeger Note Added: 0009414
25-11-14 08:56 Patrick Chevalley Relationship added related to 0002870
26-01-20 09:41 Patrick Chevalley Status assigned => feedback
26-01-20 09:41 Patrick Chevalley Note Added: 0009598
26-02-08 20:03 Patrick Chevalley Status feedback => resolved
26-02-08 20:03 Patrick Chevalley Resolution open => fixed
26-02-08 20:03 Patrick Chevalley Note Added: 0009636