ASTROSAT CZTI

Data Quality Report

Orbit 59129

Creation date: 2026-09-01T16:48:48.712338
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_264T01_9000006602_59129cztM0_level2.fits modeM0/AS1T05_264T01_9000006602_59129cztM0_level2_quad_clean.evt
Size (bytes)824,529,600104,135,040
Size786.3 MB 99.3 MB
Events in quadrant A4,515,516755,011
Events in quadrant B4,511,331818,811
Events in quadrant C5,082,275738,441
Events in quadrant D15,779,720274,434

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0192090
B0189100
C0204720
D0524260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81482342.871870%
B81493274.012762%
C81493073.767333%
D8149520263.836054%

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 8148 8148 52 52 0.64% 0.64%
B 8149 8149 88 88 1.08% 1.08%
C 8149 8149 186 186 2.28% 2.28%
D 8149 8149 4098 4098 50.29% 50.29%

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 14 683636 3002.72 922 899 227.4
A 10 251 175375 767.36 922 899 227.4
A 3 245 39276 168.78 922 899 227.4
B 4 236 390226 1960.31 915 881 198.6
B 4 201 154206 771.97 915 881 198.6
B 5 185 150614 753.89 915 881 198.6
C 15 198 635985 2616.1 892 886 242.8
C 3 233 634915 2611.69 892 886 242.8
C 12 252 175406 718.88 892 886 242.8
D 12 1 10315185 71933.16 507 486 143.4
D 12 110 3210094 22383.32 507 486 143.4
D 6 239 85713 594.36 507 486 143.4

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

TCT plots

Parameter TCT0 TCT_healed
Tct