ASTROSAT CZTI

Data Quality Report

Orbit 33575

Creation date: 2024-06-27T20:50:20.300624
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_33575cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33575cztM0_level2_quad_clean.evt
Size (bytes)324,472,32056,105,280
Size309.4 MB 53.5 MB
Events in quadrant A1,808,829382,246
Events in quadrant B2,627,895356,222
Events in quadrant C2,539,138356,711
Events in quadrant D2,597,635341,283

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132165548
B0173057065
C0184168397
D0187728502

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02512
B02310
C02416
D02816

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013046
B013763
C013755
D014064

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A379730.079010%
B37202637.069892%
C3609360.997506%
D36391604.396812%

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 10260 4169 0 0 0.00% 0.00%
B 10270 4080 217 217 2.11% 5.32%
C 10293 3996 30 30 0.29% 0.75%
D 10284 3996 150 150 1.46% 3.75%

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 112133 1246.4 437 429 89.6
A 13 254 6904 72.25 437 429 89.6
A 3 137 4445 44.81 437 429 89.6
B 5 172 835821 10202.85 413 402 81.9
B 5 255 71747 871.33 413 402 81.9
B 5 200 22304 267.49 413 402 81.9
C 3 233 744036 7982.96 396 399 93.2
C 15 214 151192 1618.77 396 399 93.2
C 0 10 59170 630.91 396 399 93.2
D 10 118 348692 3541.61 396 385 98.3
D 8 195 299973 3046.23 396 385 98.3
D 2 250 150502 1526.4 396 385 98.3

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