ASTROSAT CZTI

Data Quality Report

Orbit 29983

Creation date: 2024-06-27T20:09:37.002211
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/AS1A10_083T01_9000004306_29983cztM0_level2.evt modeM0/AS1A10_083T01_9000004306_29983cztM0_level2_quad_clean.evt
Size (bytes)579,484,80097,352,640
Size552.6 MB 92.8 MB
Events in quadrant A3,637,996622,985
Events in quadrant B5,864,519614,528
Events in quadrant C3,714,798592,514
Events in quadrant D3,817,546589,784

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157492
B0230012
C0158512
D0162372

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75961461.922064%
B75962623.449184%
C75961501.974724%
D7596660.868878%

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 8191 7598 1 1 0.01% 0.01%
B 8191 7598 5 5 0.06% 0.07%
C 8191 7598 0 0 0.00% 0.00%
D 8191 7598 9 9 0.11% 0.12%

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 8 192 27214 139.1 936 916 189.1
A 13 254 14059 69.52 936 916 189.1
A 3 137 9492 45.36 936 916 189.1
B 6 159 2200387 12399.12 918 894 177.4
B 6 36 28069 153.19 918 894 177.4
B 12 111 21958 118.74 918 894 177.4
C 14 238 144317 686.66 889 893 208.9
C 3 233 89890 426.09 889 893 208.9
C 2 114 18194 82.83 889 893 208.9
D 8 195 244857 1123.25 905 877 217.2
D 2 250 42056 189.58 905 877 217.2
D 2 234 35071 157.42 905 877 217.2

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