ASTROSAT CZTI

Data Quality Report

Orbit 07122

Creation date: 2024-06-27T15:15:53.089556
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/AS1G06_051T01_9000000972_07122cztM0_level2.evt modeM0/AS1G06_051T01_9000000972_07122cztM0_level2_quad_clean.evt
Size (bytes)163,094,40042,474,240
Size155.5 MB 40.5 MB
Events in quadrant A1,130,158282,686
Events in quadrant B1,232,699291,156
Events in quadrant C1,136,622284,541
Events in quadrant D1,289,919270,426

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A047152
B050481
C047341
D052261

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A21751034.735632%
B21751105.057471%
C2175542.482759%
D21751014.643678%

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 3325 2175 0 0 0.00% 0.00%
B 3325 2175 1 1 0.03% 0.05%
C 3325 2175 0 0 0.00% 0.00%
D 3325 2175 11 11 0.33% 0.51%

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 14 111 7957 124.28 289 282 61.8
A 8 15 5387 82.67 289 282 61.8
A 15 223 3651 54.55 289 282 61.8
B 0 219 80401 1378.4 290 283 58.1
B 4 81 22800 387.4 290 283 58.1
B 12 111 5974 97.91 290 283 58.1
C 4 254 22149 325.75 280 281 67.1
C 9 68 15438 225.78 280 281 67.1
C 8 128 3110 42.14 280 281 67.1
D 2 216 149086 2134.83 278 268 69.7
D 8 195 70552 1008.24 278 268 69.7
D 13 137 17216 243.12 278 268 69.7

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