ASTROSAT CZTI

Data Quality Report

Orbit 36589

Creation date: 2024-06-27T21:28:50.093045
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_097T24_9000005224_36589cztM0_level2.evt modeM0/AS1A11_097T24_9000005224_36589cztM0_level2_quad_clean.evt
Size (bytes)437,598,72065,462,400
Size417.3 MB 62.4 MB
Events in quadrant A2,864,873413,157
Events in quadrant B2,613,059420,274
Events in quadrant C3,700,722379,061
Events in quadrant D3,697,489381,875

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120613
B0113792
C0144262
D0148822

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5542290.523277%
B554280.144352%
C55423105.593649%
D55422003.608805%

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 7216 5543 11 11 0.15% 0.20%
B 7216 5543 0 0 0.00% 0.00%
C 7216 5543 267 267 3.70% 4.82%
D 7216 5543 160 160 2.22% 2.89%

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 10 83 206008 1606.6 637 625 127.8
A 15 223 143136 1114.79 637 625 127.8
A 9 143 30698 235.24 637 625 127.8
B 0 213 48077 385.96 632 615 123.0
B 4 232 29886 238.03 632 615 123.0
B 12 111 15375 120.03 632 615 123.0
C 14 254 786026 5648.71 597 602 139.0
C 0 10 314192 2255.32 597 602 139.0
C 15 214 233863 1677.6 597 602 139.0
D 12 16 387254 2598.03 605 588 148.8
D 2 250 198024 1326.58 605 588 148.8
D 12 227 187111 1253.26 605 588 148.8

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