ASTROSAT CZTI

Data Quality Report

Orbit 54767

Creation date: 2025-11-12T06:25:12.942342
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_103T01_9000006524_54767cztM0_level2.fits modeM0/AS1A14_103T01_9000006524_54767cztM0_level2_quad_clean.evt
Size (bytes)797,806,080100,016,640
Size760.8 MB 95.4 MB
Events in quadrant A3,496,141732,512
Events in quadrant B8,385,636651,440
Events in quadrant C8,240,450565,437
Events in quadrant D8,808,727538,955

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163460
B0302460
C0299890
D0316640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7760350.451031%
B7761156820.203582%
C7761165121.273032%
D7760159120.502577%

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 7760 7760 15 15 0.19% 0.19%
B 7761 7761 1356 1356 17.47% 17.47%
C 7761 7761 1285 1285 16.56% 16.56%
D 7760 7760 1374 1374 17.71% 17.71%

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 4 206 61441 296.87 828 806 204.3
A 5 240 53142 256.23 828 806 204.3
A 5 243 46554 223.98 828 806 204.3
B 2 249 4950710 30888.65 749 723 160.3
B 1 207 154783 961.36 749 723 160.3
B 0 213 100775 624.34 749 723 160.3
C 4 5 3109044 15961.24 710 702 194.7
C 12 249 761163 3904.94 710 702 194.7
C 15 209 584704 2998.83 710 702 194.7
D 3 12 4852272 23958.4 709 676 202.5
D 11 129 545921 2692.56 709 676 202.5
D 2 252 170220 837.25 709 676 202.5

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