ASTROSAT CZTI

Data Quality Report

Orbit 46033

Creation date: 2024-06-27T23:18:59.097154
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_033T03_9000006156_46033cztM0_level2.fits modeM0/AS1A13_033T03_9000006156_46033cztM0_level2_quad_clean.evt
Size (bytes)241,496,64039,507,840
Size230.3 MB 37.7 MB
Events in quadrant A2,381,324262,985
Events in quadrant B3,427,897224,670
Events in quadrant C1,411,273271,378
Events in quadrant D1,513,448248,838

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01720
D01720

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A086071
B0120091
C060341
D062461

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A26211907.249142%
B262179330.255628%
C26211154.387638%
D26211204.578405%

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 2941 2622 6 6 0.20% 0.23%
B 2941 2622 428 428 14.55% 16.32%
C 2941 2622 23 23 0.78% 0.88%
D 2941 2622 15 15 0.51% 0.57%

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 1053714 15229.39 320 312 69.2
A 13 248 86481 1245.77 320 312 69.2
A 13 254 4552 61.3 320 312 69.2
B 3 112 2222889 36455.38 292 283 61.0
B 5 32 16773 270.47 292 283 61.0
B 5 255 11304 180.77 292 283 61.0
C 14 254 167628 2186.64 316 317 76.5
C 12 249 6871 85.66 316 317 76.5
C 3 233 2532 28.95 316 317 76.5
D 2 37 88004 1067.73 320 310 82.1
D 13 171 60940 738.21 320 310 82.1
D 2 249 57465 695.9 320 310 82.1

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