ASTROSAT CZTI

Data Quality Report

Orbit 34028

Creation date: 2024-06-27T20:55:34.919979
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/AS1A06_003T04_9000004866_34028cztM0_level2.evt modeM0/AS1A06_003T04_9000004866_34028cztM0_level2_quad_clean.evt
Size (bytes)521,285,76056,191,680
Size497.1 MB 53.6 MB
Events in quadrant A2,667,670340,787
Events in quadrant B3,485,361337,376
Events in quadrant C4,443,859326,392
Events in quadrant D4,808,321302,416

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114693
B0140702
C0170282
D0180542

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5637100.177399%
B56371322.341671%
C56372664.718822%
D56375539.810183%

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 7369 5636 0 0 0.00% 0.00%
B 7370 5638 82 82 1.11% 1.45%
C 7370 5638 231 231 3.13% 4.10%
D 7370 5638 538 538 7.30% 9.54%

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 6 19432 139.45 672 657 134.6
A 10 83 17802 127.34 672 657 134.6
A 15 169 13408 94.7 672 657 134.6
B 5 172 323937 2533.67 668 651 127.6
B 15 222 125926 981.81 668 651 127.6
B 0 189 124311 969.15 668 651 127.6
C 4 254 742988 4942.45 646 653 150.2
C 0 10 559596 3721.43 646 653 150.2
C 3 233 271889 1805.88 646 653 150.2
D 13 249 470644 2799.02 622 609 167.9
D 10 118 397607 2364.09 622 609 167.9
D 8 195 395127 2349.32 622 609 167.9

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