ASTROSAT CZTI

Data Quality Report

Orbit 03126

Creation date: 2024-06-27T14:24:57.836116
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/AS1G05_214T01_9000000428_03126cztM0_level2.evt modeM0/AS1G05_214T01_9000000428_03126cztM0_level2_quad_clean.evt
Size (bytes)79,234,56015,258,240
Size75.6 MB 14.6 MB
Events in quadrant A544,84894,032
Events in quadrant B512,33497,006
Events in quadrant C598,83993,701
Events in quadrant D661,90089,153

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A023620
B023140
C026150
D027970

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A115110.086881%
B115100.000000%
C1151110.955691%
D1151413.562120%

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 1151 1151 0 0 0.00% 0.00%
B 1151 1151 0 0 0.00% 0.00%
C 1151 1151 12 12 1.04% 1.04%
D 1151 1151 35 35 3.04% 3.04%

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 12 247 34616 1229.48 128 126 28.1
A 0 13 8435 296.19 128 126 28.1
A 0 5 3314 113.64 128 126 28.1
B 4 216 3187 114.28 128 126 26.8
B 15 204 2439 86.35 128 126 26.8
B 0 198 2373 83.89 128 126 26.8
C 1 192 73227 2466.55 121 121 29.6
C 5 250 26481 889.37 121 121 29.6
C 0 219 9445 314.59 121 121 29.6
D 13 223 102292 3324.17 120 116 30.7
D 13 120 38309 1242.56 120 116 30.7
D 2 136 27633 895.23 120 116 30.7

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