ASTROSAT CZTI

Data Quality Report

Orbit 22032

Creation date: 2024-06-27T18:35:35.967120
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/AS1A07_134T01_9000003256_22032cztM0_level2.evt modeM0/AS1A07_134T01_9000003256_22032cztM0_level2_quad_clean.evt
Size (bytes)236,318,40035,824,320
Size225.4 MB 34.2 MB
Events in quadrant A1,328,785235,442
Events in quadrant B1,397,482237,928
Events in quadrant C1,321,691228,250
Events in quadrant D2,941,090206,733

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A053831
B056511
C054271
D0103441

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2451853.467972%
B24511034.202366%
C24511044.243166%
D245150420.563035%

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 3606 2451 0 0 0.00% 0.00%
B 3606 2451 3 3 0.08% 0.12%
C 3606 2451 0 0 0.00% 0.00%
D 3606 2451 439 439 12.17% 17.91%

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 4269 54.7 344 337 71.9
A 0 226 2993 36.95 344 337 71.9
A 3 137 2948 36.33 344 337 71.9
B 0 197 30776 453.16 339 330 67.2
B 3 64 15790 230.11 339 330 67.2
B 0 190 13846 201.17 339 330 67.2
C 14 238 51570 664.08 324 326 77.2
C 0 10 6437 79.19 324 326 77.2
C 13 61 2306 25.65 324 326 77.2
D 1 52 1688274 21845.62 311 302 77.3
D 11 176 29123 373.0 311 302 77.3
D 12 233 18745 238.69 311 302 77.3

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