ASTROSAT CZTI

Data Quality Report

Orbit 23301

Creation date: 2024-06-27T18:52:30.400918
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/AS1C05_012T03_9000003442_23301cztM0_level2.evt modeM0/AS1C05_012T03_9000003442_23301cztM0_level2_quad_clean.evt
Size (bytes)86,791,68026,760,960
Size82.8 MB 25.5 MB
Events in quadrant A618,622175,381
Events in quadrant B647,341180,985
Events in quadrant C621,644174,699
Events in quadrant D637,399169,540

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A029470
B029900
C029610
D030730

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A147230.203804%
B147230.203804%
C147230.203804%
D147370.475221%

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 1472 1472 0 0 0.00% 0.00%
B 1472 1472 1 1 0.07% 0.07%
C 1472 1472 1 1 0.07% 0.07%
D 1473 1473 6 6 0.41% 0.41%

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 13 254 2221 60.11 160 157 34.3
A 3 137 1461 37.98 160 157 34.3
A 0 226 1371 35.36 160 157 34.3
B 4 173 20052 607.25 159 154 32.8
B 12 111 3790 110.96 159 154 32.8
B 11 111 3291 95.74 159 154 32.8
C 14 238 24540 661.26 149 149 36.9
C 10 9 6796 180.21 149 149 36.9
C 7 247 6536 173.16 149 149 36.9
D 1 52 48865 1271.3 152 147 38.3
D 7 238 15948 412.33 152 147 38.3
D 2 234 3829 96.08 152 147 38.3

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