ASTROSAT CZTI

Data Quality Report

Orbit 19114

Creation date: 2024-06-27T17:59:11.948148
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/AS1T03_098T01_9000002836_19114cztM0_level2.evt modeM0/AS1T03_098T01_9000002836_19114cztM0_level2_quad_clean.evt
Size (bytes)1,036,817,280149,198,400
Size988.8 MB 142.3 MB
Events in quadrant A5,745,815930,131
Events in quadrant B7,593,304930,227
Events in quadrant C7,290,111919,938
Events in quadrant D9,925,460872,585

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0253332
B0304042
C0294982
D0377842

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02540
B02540
C02540
D02540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A125151150.918897%
B125155864.682381%
C125153562.844586%
D125169387.494407%

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 13750 12517 0 0 0.00% 0.00%
B 13750 12517 319 319 2.32% 2.55%
C 13750 12517 33 33 0.24% 0.26%
D 13751 12517 855 855 6.22% 6.83%

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 13140 38.73 1490 1456 301.7
A 3 137 11468 33.18 1490 1456 301.7
A 12 194 10849 31.13 1490 1456 301.7
B 10 245 1529836 5467.66 1465 1429 279.5
B 3 112 60650 211.85 1465 1429 279.5
B 7 220 53992 188.04 1465 1429 279.5
C 3 233 1509555 4521.22 1420 1425 333.6
C 14 238 218627 651.15 1420 1425 333.6
C 0 207 30653 87.62 1420 1425 333.6
D 7 238 2320069 6727.42 1415 1376 344.7
D 1 52 786487 2277.91 1415 1376 344.7
D 11 176 775118 2244.92 1415 1376 344.7

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