ASTROSAT CZTI

Data Quality Report

Orbit 56545

Creation date: 2026-03-11T21:34:17.545433
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_060T01_9000006556_56545cztM0_level2.fits modeM0/AS1A14_060T01_9000006556_56545cztM0_level2_quad_clean.evt
Size (bytes)782,046,720143,320,320
Size745.8 MB 136.7 MB
Events in quadrant A6,000,278962,464
Events in quadrant B10,498,327866,273
Events in quadrant C5,667,860923,328
Events in quadrant D5,977,689867,428

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250692
B0384202
C0243262
D0249982

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02140
B02140
C02140
D02140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A103802282.196532%
B10380218421.040462%
C103812362.273384%
D103812582.485310%

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 11700 10383 147 147 1.26% 1.42%
B 11700 10383 1221 1221 10.44% 11.76%
C 11701 10384 163 163 1.39% 1.57%
D 11701 10384 184 184 1.57% 1.77%

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 4 249 467233 1666.14 1133 1105 279.8
A 7 64 463510 1652.83 1133 1105 279.8
A 4 95 269570 959.61 1133 1105 279.8
B 4 206 5252746 23853.63 1030 992 220.2
B 5 185 496035 2248.5 1030 992 220.2
B 7 252 149689 675.39 1030 992 220.2
C 15 230 428118 1427.56 1094 1085 299.1
C 6 223 388708 1295.81 1094 1085 299.1
C 14 254 142734 473.53 1094 1085 299.1
D 2 249 544637 1755.29 1090 1040 309.7
D 2 31 202288 649.84 1090 1040 309.7
D 8 240 179893 577.52 1090 1040 309.7

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