ASTROSAT CZTI

Data Quality Report

Orbit 54347

Creation date: 2025-10-14T23:04:09.355402
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A14_126T15_9000006516_54347cztM0_level2.fits modeM0/AS1A14_126T15_9000006516_54347cztM0_level2_quad_clean.evt
Size (bytes)819,624,96088,079,040
Size781.7 MB 84.0 MB
Events in quadrant A3,310,228698,658
Events in quadrant B3,377,240739,777
Events in quadrant C6,657,530558,096
Events in quadrant D16,421,992156,621

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154641
B0154420
C0250930
D0538130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7378240.325291%
B7378320.433722%
C7378116915.844402%
D7379560075.891042%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7378 7378 19 19 0.26% 0.26%
B 7378 7378 19 19 0.26% 0.26%
C 7378 7378 1116 1116 15.13% 15.13%
D 7379 7379 5537 5537 75.04% 75.04%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 0 8 155149 809.16 770 749 190.8
A 3 114 34881 178.87 770 749 190.8
A 15 174 31175 159.45 770 749 190.8
B 10 247 79672 484.62 759 731 162.9
B 0 171 75378 458.26 759 731 162.9
B 5 172 40437 243.76 759 731 162.9
C 1 241 2214352 11889.26 687 680 186.2
C 13 3 839298 4504.08 687 680 186.2
C 14 254 381659 2046.17 687 680 186.2
D 8 176 10871863 111566.08 338 322 97.4
D 15 108 3884024 39855.38 338 322 97.4
D 2 172 76897 785.83 338 322 97.4

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter