ASTROSAT CZTI

Data Quality Report

Orbit 42092

Creation date: 2024-06-27T22:36:46.523493
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/AS1A12_088T02_9000005744_42092cztM0_level2.fits modeM0/AS1A12_088T02_9000005744_42092cztM0_level2_quad_clean.evt
Size (bytes)127,264,32031,092,480
Size121.4 MB 29.7 MB
Events in quadrant A1,743,144204,249
Events in quadrant B868,376214,772
Events in quadrant C928,181202,153
Events in quadrant D1,026,824186,711

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A064432
B037081
C037301
D042441

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1824965.263158%
B182420.109649%
C182410.054825%
D1824191.041667%

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 3376 1825 40 40 1.18% 2.19%
B 3376 1825 1 1 0.03% 0.05%
C 3376 1825 0 0 0.00% 0.00%
D 3376 1825 11 11 0.33% 0.60%

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 15 222 657592 14452.4 215 211 45.5
A 10 83 219248 4815.49 215 211 45.5
A 15 223 16869 366.22 215 211 45.5
B 5 255 17196 389.5 215 209 43.6
B 12 111 5430 119.71 215 209 43.6
B 11 111 5117 112.54 215 209 43.6
C 15 214 78193 1530.53 211 213 50.9
C 8 79 23147 450.13 211 213 50.9
C 10 223 1525 25.75 211 213 50.9
D 10 199 80380 1484.29 213 206 54.0
D 1 52 46761 861.89 213 206 54.0
D 13 249 27148 498.79 213 206 54.0

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