ASTROSAT CZTI

Data Quality Report

Orbit 30529

Creation date: 2024-06-27T20:16:35.518405
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/AS1A10_053T15_9000004392_30529cztM0_level2.evt modeM0/AS1A10_053T15_9000004392_30529cztM0_level2_quad_clean.evt
Size (bytes)251,409,60035,864,640
Size239.8 MB 34.2 MB
Events in quadrant A1,537,059228,142
Events in quadrant B2,370,176226,052
Events in quadrant C1,773,849215,425
Events in quadrant D1,744,036218,450

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061181
B087263
C069671
D069161

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2765943.399638%
B27641515.463097%
C27641545.571635%
D2764782.821997%

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 4015 2766 3 3 0.07% 0.11%
B 4014 2765 11 11 0.27% 0.40%
C 4014 2765 25 25 0.62% 0.90%
D 4014 2765 15 15 0.37% 0.54%

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 8 192 12848 157.56 393 385 79.1
A 12 96 7193 86.07 393 385 79.1
A 13 254 5207 60.96 393 385 79.1
B 6 159 760151 10376.38 382 373 73.2
B 6 36 33916 458.1 382 373 73.2
B 4 171 28606 385.58 382 373 73.2
C 10 22 178712 2061.62 368 370 86.5
C 14 238 60289 692.66 368 370 86.5
C 15 208 40985 469.51 368 370 86.5
D 12 227 126815 1273.16 376 369 99.3
D 8 195 117986 1184.26 376 369 99.3
D 1 52 26919 267.33 376 369 99.3

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