ASTROSAT CZTI

Data Quality Report

Orbit 45179

Creation date: 2024-06-27T23:10:15.831357
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/AS1A13_049T05_9000006050_45179cztM0_level2.fits modeM0/AS1A13_049T05_9000006050_45179cztM0_level2_quad_clean.evt
Size (bytes)118,488,96018,864,000
Size113.0 MB 18.0 MB
Events in quadrant A1,167,884121,958
Events in quadrant B748,467128,284
Events in quadrant C695,416137,890
Events in quadrant D1,677,68592,162

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A042042
B029700
C028530
D058400

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A120417414.451827%
B120513611.286307%
C1205211.742739%
D120541634.522822%

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 1204 1204 31 31 2.57% 2.57%
B 1205 1205 3 3 0.25% 0.25%
C 1205 1205 5 5 0.41% 0.41%
D 1205 1205 262 262 21.74% 21.74%

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 416185 11539.73 161 157 36.1
A 15 174 90812 2514.58 161 157 36.1
A 15 223 33185 916.13 161 157 36.1
B 3 112 43842 1251.19 160 155 34.9
B 15 35 21514 611.72 160 155 34.9
B 0 183 15033 426.1 160 155 34.9
C 15 208 23287 588.44 161 161 39.3
C 12 2 21586 545.16 161 161 39.3
C 3 233 13736 345.42 161 161 39.3
D 13 249 422545 10879.58 147 142 38.8
D 4 232 227219 5848.69 147 142 38.8
D 1 47 112737 2900.04 147 142 38.8

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