ASTROSAT CZTI

Data Quality Report

Orbit 08163

Creation date: 2024-06-27T15:29:05.570026
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/AS1G07_046T01_9000001124_08163cztM0_level2.evt modeM0/AS1G07_046T01_9000001124_08163cztM0_level2_quad_clean.evt
Size (bytes)268,557,12026,890,560
Size256.1 MB 25.6 MB
Events in quadrant A1,651,438148,010
Events in quadrant B1,746,141148,288
Events in quadrant C1,906,535146,370
Events in quadrant D2,605,001137,979

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A068210
B071790
C077390
D097770

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A328420.060901%
B3284180.548112%
C328420.060901%
D328440012.180268%

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 3284 3284 0 0 0.00% 0.00%
B 3284 3284 11 11 0.33% 0.33%
C 3284 3284 0 0 0.00% 0.00%
D 3284 3284 375 375 11.42% 11.42%

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 0 226 4209 43.01 427 419 88.1
A 12 194 3801 38.38 427 419 88.1
A 13 254 3408 33.92 427 419 88.1
B 0 214 43445 532.79 424 415 80.8
B 10 16 31553 385.55 424 415 80.8
B 4 173 15444 186.09 424 415 80.8
C 1 16 306000 3219.01 410 414 94.9
C 13 61 3167 29.0 410 414 94.9
C 3 202 1053 6.73 410 414 94.9
D 1 52 1085356 11458.13 380 369 94.7
D 12 233 40042 418.97 380 369 94.7
D 13 169 13708 140.87 380 369 94.7

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