ASTROSAT CZTI

Data Quality Report

Orbit 45424

Creation date: 2024-06-27T23:11:27.200048
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/AS1A13_038T03_9000006058_45424cztM0_level2.fits modeM0/AS1A13_038T03_9000006058_45424cztM0_level2_quad_clean.evt
Size (bytes)279,797,76064,779,840
Size266.8 MB 61.8 MB
Events in quadrant A3,280,743431,812
Events in quadrant B2,514,265430,257
Events in quadrant C1,789,517421,693
Events in quadrant D2,448,091384,722

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126711
B0104460
C085413
D0100840

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4161360.865177%
B41621954.685247%
C4160140.336538%
D4162270.648727%

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 4161 4161 23 23 0.55% 0.55%
B 4162 4162 152 152 3.65% 3.65%
C 4162 4161 17 17 0.41% 0.41%
D 4162 4162 23 23 0.55% 0.55%

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 10 83 1477455 15783.09 443 432 93.6
A 15 174 57923 614.33 443 432 93.6
A 2 79 28811 303.25 443 432 93.6
B 15 201 615307 7023.18 435 422 87.6
B 0 189 41224 466.04 435 422 87.6
B 4 170 28070 315.79 435 422 87.6
C 14 254 79798 769.77 434 435 103.1
C 11 16 5604 50.14 434 435 103.1
C 3 233 5195 46.17 434 435 103.1
D 11 241 259541 2338.33 435 422 110.8
D 1 52 252240 2272.45 435 422 110.8
D 5 222 114083 1025.69 435 422 110.8

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