ASTROSAT CZTI

Data Quality Report

Orbit 05541

Creation date: 2024-06-27T14:56:29.412830
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/AS1G06_084T01_9000000710_05541cztM0_level2.evt modeM0/AS1G06_084T01_9000000710_05541cztM0_level2_quad_clean.evt
Size (bytes)513,380,16071,170,560
Size489.6 MB 67.9 MB
Events in quadrant A3,168,958437,809
Events in quadrant B3,468,486442,203
Events in quadrant C4,881,755387,742
Events in quadrant D3,582,734429,232

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01369216
B01441719
C0187248
D01498626

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65661131.720987%
B65651211.843107%
C657078711.978691%
D65631902.895018%

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 8718 6572 0 0 0.00% 0.00%
B 8718 6574 8 8 0.09% 0.12%
C 8718 6573 677 677 7.77% 10.30%
D 8718 6574 66 66 0.76% 1.00%

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 12 194 8034 43.07 822 804 167.9
A 0 226 7862 42.05 822 804 167.9
A 0 50 2883 12.38 822 804 167.9
B 15 204 167849 1058.6 826 808 157.8
B 4 81 23337 142.77 826 808 157.8
B 4 48 23169 141.71 826 808 157.8
C 1 241 1894795 10997.12 744 747 172.2
C 9 16 42764 243.96 744 747 172.2
C 1 16 30620 173.45 744 747 172.2
D 2 136 176147 900.83 797 772 194.7
D 2 33 164959 843.36 797 772 194.7
D 2 152 112959 576.26 797 772 194.7

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