ASTROSAT CZTI

Data Quality Report

Orbit 20221223_C06_010T05_9000005436_level2

Creation date: 2022-12-26T05:37:27.152135
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/AS1C06_010T05_9000005436cztM0_level2.fits modeM0/AS1C06_010T05_9000005436cztM0_level2_quad_clean.evt
Size (bytes)101,341,440124,303,680
Size96.6 MB 118.5 MB
Events in quadrant A645,734850,671
Events in quadrant B592,286815,291
Events in quadrant C608,254765,602
Events in quadrant D502,674612,430

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0226820
B0242190
C0229010
D0487100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02120
B02120
C02120
D02120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10394330.317491%
B103942522.424476%
C10394670.644603%
D10394152214.643063%

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 14488 10393 0 0 0.00% 0.00%
B 14488 10392 0 0 0.00% 0.00%
C 14488 10393 0 0 0.00% 0.00%
D 14488 10391 0 0 0.00% 0.00%

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 9 19 547 8.88 168 160 43.6
A 7 110 536 8.62 168 160 43.6
A 0 29 509 8.0 168 160 43.6
B 2 9 491 10.35 157 151 32.9
B 5 128 431 8.52 157 151 32.9
B 5 255 429 8.46 157 151 32.9
C 3 203 479 7.8 160 152 41.9
C 3 202 473 7.65 160 152 41.9
C 1 81 465 7.46 160 152 41.9
D 7 3 381 6.31 143 132 39.5
D 6 231 367 5.95 143 132 39.5
D 10 189 364 5.88 143 132 39.5

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