ASTROSAT CZTI

Data Quality Report

Orbit 53582

Creation date: 2025-08-24T11:45:49.077718
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/AS1A14_004T05_9000006502_53582cztM0_level2.fits modeM0/AS1A14_004T05_9000006502_53582cztM0_level2_quad_clean.evt
Size (bytes)742,374,72088,018,560
Size708.0 MB 83.9 MB
Events in quadrant A4,518,267642,398
Events in quadrant B7,323,762601,411
Events in quadrant C5,066,427616,492
Events in quadrant D10,036,120323,550

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0182592
B0265112
C0198872
D0346702

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69123555.135995%
B6913132919.224649%
C69123585.179398%
D6912316245.746528%

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 8627 6914 188 188 2.18% 2.72%
B 8628 6914 775 775 8.98% 11.21%
C 8627 6914 246 246 2.85% 3.56%
D 8627 6912 2399 2399 27.81% 34.71%

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 15 174 678436 3624.86 751 732 187.0
A 3 62 426478 2277.2 751 732 187.0
A 4 239 230986 1231.57 751 732 187.0
B 4 206 2828835 18732.04 704 680 151.0
B 10 28 818457 5416.47 704 680 151.0
B 2 249 382889 2531.53 704 680 151.0
C 15 224 1163562 5795.77 734 730 200.6
C 1 241 395403 1967.12 734 730 200.6
C 15 178 184488 915.88 734 730 200.6
D 8 176 6977736 52332.79 455 433 133.3
D 12 3 505603 3788.99 455 433 133.3
D 12 1 179866 1345.83 455 433 133.3

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