ASTROSAT CZTI

Data Quality Report

Orbit 59193

Creation date: 2026-09-07T11:23:00.845949
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/AS1T05_271T01_9000006604_59193cztM0_level2.fits modeM0/AS1T05_271T01_9000006604_59193cztM0_level2_quad_clean.evt
Size (bytes)513,737,280102,801,600
Size489.9 MB 98.0 MB
Events in quadrant A3,649,233694,178
Events in quadrant B4,161,305728,493
Events in quadrant C4,164,288651,428
Events in quadrant D6,505,529557,724

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156922
B0171962
C0169102
D0240733

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69071502.171710%
B69082964.284887%
C69082083.011002%
D690778611.379760%

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 8882 6909 11 11 0.12% 0.16%
B 8883 6909 89 89 1.00% 1.29%
C 8883 6910 103 103 1.16% 1.49%
D 8881 6908 565 565 6.36% 8.18%

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 10 248 224275 1144.23 802 779 195.3
A 15 233 168533 858.85 802 779 195.3
A 10 251 90061 457.1 802 779 195.3
B 4 171 254008 1500.16 783 754 168.8
B 5 185 159847 942.39 783 754 168.8
B 5 236 155602 917.25 783 754 168.8
C 3 233 536369 2512.72 778 771 213.2
C 12 252 188329 879.92 778 771 213.2
C 13 3 182329 851.77 778 771 213.2
D 12 110 1408480 6851.89 731 698 205.5
D 2 249 581582 2827.25 731 698 205.5
D 8 160 503479 2447.11 731 698 205.5

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

TCT plots

Parameter TCT0 TCT_healed
Tct