ASTROSAT CZTI

Data Quality Report

Orbit 33590

Creation date: 2024-06-27T20:50:30.991136
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/AS1A11_060T01_9000004808_33590cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33590cztM0_level2_quad_clean.evt
Size (bytes)230,679,36018,397,440
Size220.0 MB 17.5 MB
Events in quadrant A2,705,64497,628
Events in quadrant B1,427,639102,175
Events in quadrant C1,222,539106,318
Events in quadrant D1,489,557101,345

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A094912
B055431
C048011
D058951

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A205425812.560857%
B20541235.988315%
C2054311.509250%
D2054401.947420%

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 3367 2055 136 136 4.04% 6.62%
B 3367 2055 87 87 2.58% 4.23%
C 3367 2055 23 23 0.68% 1.12%
D 3367 2055 29 29 0.86% 1.41%

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 15 169 1801472 36890.75 232 228 48.8
A 13 254 3703 71.17 232 228 48.8
A 10 83 2739 51.43 232 228 48.8
B 5 172 239160 5051.42 235 228 47.3
B 15 222 133430 2816.11 235 228 47.3
B 4 251 101709 2145.48 235 228 47.3
C 3 233 107198 1902.79 235 236 56.2
C 15 214 90302 1602.22 235 236 56.2
C 0 10 85328 1513.74 235 236 56.2
D 8 195 217602 3661.75 235 227 59.4
D 1 47 110477 1857.2 235 227 59.4
D 2 250 107370 1804.86 235 227 59.4

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