ASTROSAT CZTI

Data Quality Report

Orbit 47444

Creation date: 2024-07-06T21:54:52.124374
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_9000006326_47444cztM0_level2.fits modeM0/AS1A13_053T01_9000006326_47444cztM0_level2_quad_clean.evt
Size (bytes)531,878,400108,506,880
Size507.2 MB 103.5 MB
Events in quadrant A7,217,464727,899
Events in quadrant B3,309,272766,689
Events in quadrant C3,035,037740,576
Events in quadrant D5,620,250595,222

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260212
B0143602
C0137132
D0212672

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65283815.836397%
B65281231.884191%
C6528430.658701%
D652890413.848039%

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 7673 6529 90 90 1.17% 1.38%
B 7673 6529 40 40 0.52% 0.61%
C 7673 6529 2 2 0.03% 0.03%
D 7673 6528 818 818 10.66% 12.53%

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 3990122 25820.05 747 732 154.5
A 9 191 288045 1859.54 747 732 154.5
A 9 240 23188 145.34 747 732 154.5
B 5 32 98499 670.46 751 729 145.8
B 5 255 87012 591.69 751 729 145.8
B 0 198 47359 319.77 751 729 145.8
C 3 233 85436 494.68 737 741 171.2
C 1 3 44054 252.98 737 741 171.2
C 8 222 21955 123.9 737 741 171.2
D 2 165 1136703 6466.59 708 684 175.7
D 6 112 1039422 5912.83 708 684 175.7
D 12 2 285816 1623.06 708 684 175.7

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