ASTROSAT CZTI

Data Quality Report

Orbit 16186

Creation date: 2024-06-27T17:19:06.035255
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/AS1T02_109T01_9000002386_16186cztM0_level2.evt modeM0/AS1T02_109T01_9000002386_16186cztM0_level2_quad_clean.evt
Size (bytes)225,656,64032,195,520
Size215.2 MB 30.7 MB
Events in quadrant A1,485,337196,549
Events in quadrant B1,493,027200,555
Events in quadrant C1,936,534186,116
Events in quadrant D1,723,757188,313

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A095463316
B092713078
C0118684165
D0117784783

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08832
B08630
C08830
D08828

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2861682.376791%
B2883862.983004%
C28221394.925585%
D27891505.378272%

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 4595 3288 0 0 0.00% 0.00%
B 4589 3320 0 0 0.00% 0.00%
C 4605 3227 2 2 0.04% 0.06%
D 4622 3227 76 76 1.64% 2.36%

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 15 174 39324 510.14 369 359 76.4
A 8 247 22080 284.38 369 359 76.4
A 0 226 3294 38.43 369 359 76.4
B 3 64 14625 194.89 370 360 73.2
B 0 229 8870 116.26 370 360 73.2
B 3 209 8258 107.9 370 360 73.2
C 3 233 312556 3819.62 344 345 81.7
C 7 247 198656 2426.16 344 345 81.7
C 14 238 52392 636.75 344 345 81.7
D 12 221 343126 4026.16 341 331 85.1
D 1 52 30840 358.33 341 331 85.1
D 15 0 27225 315.87 341 331 85.1

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