ASTROSAT CZTI

Data Quality Report

Orbit 48026

Creation date: 2024-10-15T18:42:17.654739
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_053T01_9000006388_48026cztM0_level2.fits modeM0/AS1A13_053T01_9000006388_48026cztM0_level2_quad_clean.evt
Size (bytes)389,286,72092,064,960
Size371.3 MB 87.8 MB
Events in quadrant A5,765,380590,388
Events in quadrant B2,612,771644,259
Events in quadrant C2,616,282615,502
Events in quadrant D2,982,849548,396

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A092
B091
C0103
D0104

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01197
B01219
C012212
D012012

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0223851656
B012479756
C012589728
D013961917

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A55012113.835666%
B5580280.501792%
C5604340.606709%
D55681272.280891%

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 7517 5634 102 102 1.36% 1.81%
B 7517 5691 9 9 0.12% 0.16%
C 7517 5711 26 26 0.35% 0.46%
D 7517 5671 116 116 1.54% 2.05%

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 3435755 28003.44 592 578 122.7
A 0 31 17693 139.52 592 578 122.7
A 10 255 15468 121.38 592 578 122.7
B 7 221 51479 428.68 613 594 118.7
B 4 171 41614 345.57 613 594 118.7
B 0 198 32260 266.77 613 594 118.7
C 12 2 102204 716.35 603 606 141.8
C 14 254 54903 382.84 603 606 141.8
C 0 207 40313 279.97 603 606 141.8
D 5 32 205092 1372.17 589 570 149.1
D 2 249 202538 1355.03 589 570 149.1
D 5 222 159281 1064.82 589 570 149.1

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