ASTROSAT CZTI

Data Quality Report

Orbit 32890

Creation date: 2024-06-27T20:43:09.182695
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/AS1A11_005T05_9000004744_32890cztM0_level2.evt modeM0/AS1A11_005T05_9000004744_32890cztM0_level2_quad_clean.evt
Size (bytes)1,221,877,440153,472,320
Size1.1 GB 146.4 MB
Events in quadrant A7,107,155970,514
Events in quadrant B8,321,944978,622
Events in quadrant C6,957,224975,791
Events in quadrant D13,713,055794,561

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02740
B02740
C02740
D02740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0690

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0295705
B0330354
C0290064
D0500564

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A13428330.245755%
B134284953.686327%
C134281340.997915%
D13428192014.298481%

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 19675 13431 0 0 0.00% 0.00%
B 19675 13431 302 302 1.53% 2.25%
C 19675 13431 108 108 0.55% 0.80%
D 19675 13431 1494 1494 7.59% 11.12%

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 14 63 751541 2325.29 1633 1603 322.5
A 13 254 25002 72.55 1633 1603 322.5
A 13 6 22359 64.36 1633 1603 322.5
B 5 172 1447560 4796.4 1625 1589 301.5
B 0 219 130677 428.19 1625 1589 301.5
B 0 230 62809 203.07 1625 1589 301.5
C 0 10 483279 1339.1 1582 1598 359.7
C 14 67 146978 404.16 1582 1598 359.7
C 1 241 88582 241.82 1582 1598 359.7
D 2 250 2352332 6408.68 1453 1420 366.8
D 12 218 2260443 6158.18 1453 1420 366.8
D 8 195 2191485 5970.2 1453 1420 366.8

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