ASTROSAT CZTI

Data Quality Report

Orbit 15544

Creation date: 2024-06-27T17:10:06.875667
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/AS1G08_030T01_9000002302_15544cztM0_level2.evt modeM0/AS1G08_030T01_9000002302_15544cztM0_level2_quad_clean.evt
Size (bytes)131,728,3207,349,760
Size125.6 MB 7.0 MB
Events in quadrant A921,88529,082
Events in quadrant B898,00129,321
Events in quadrant C876,54827,911
Events in quadrant D1,191,81327,527

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A038142
B036281
C035161
D045941

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1455583.986254%
B1455704.810997%
C1455684.673540%
D1455573.917526%

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 2751 1456 0 0 0.00% 0.00%
B 2751 1456 0 0 0.00% 0.00%
C 2751 1457 1 1 0.04% 0.07%
D 2751 1457 2 2 0.07% 0.14%

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 0 253 37266 789.11 230 226 46.9
A 0 226 2053 38.92 230 226 46.9
A 12 194 1623 29.76 230 226 46.9
B 4 173 8082 175.83 227 222 44.7
B 12 111 4832 103.13 227 222 44.7
B 0 214 4391 93.26 227 222 44.7
C 14 238 34368 676.38 212 213 50.5
C 10 187 8196 158.09 212 213 50.5
C 3 233 5406 102.84 212 213 50.5
D 13 104 263653 4995.62 215 209 52.7
D 5 222 76069 1438.51 215 209 52.7
D 13 170 13474 251.54 215 209 52.7

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