ASTROSAT CZTI

Data Quality Report

Orbit 53229

Creation date: 2025-07-31T17:09:42.585938
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/AS1C09_011T06_9000006490_53229cztM0_level2.fits modeM0/AS1C09_011T06_9000006490_53229cztM0_level2_quad_clean.evt
Size (bytes)738,979,20089,605,440
Size704.7 MB 85.5 MB
Events in quadrant A5,602,111619,778
Events in quadrant B5,850,160600,214
Events in quadrant C9,681,664435,210
Events in quadrant D5,672,845565,525

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0216650
B0223020
C0336330
D0218260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70705798.189533%
B7071106014.990808%
C7071225631.904964%
D70714075.755904%

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 7070 7070 494 494 6.99% 6.99%
B 7071 7071 710 710 10.04% 10.04%
C 7071 7071 2136 2136 30.21% 30.21%
D 7071 7071 383 383 5.42% 5.42%

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 3 62 2246423 12750.4 709 690 176.1
A 0 8 222344 1258.47 709 690 176.1
A 15 174 96133 541.89 709 690 176.1
B 12 17 2170652 15468.02 660 638 140.3
B 12 33 254872 1812.2 660 638 140.3
B 7 0 229390 1630.56 660 638 140.3
C 1 241 3467707 21503.65 584 580 161.2
C 15 165 1305415 8092.79 584 580 161.2
C 15 224 773574 4794.23 584 580 161.2
D 6 239 1109549 5662.07 687 656 195.8
D 0 18 309659 1577.79 687 656 195.8
D 3 12 244991 1247.59 687 656 195.8

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