ASTROSAT CZTI

Data Quality Report

Orbit 13301

Creation date: 2024-06-27T16:38:59.665507
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/AS1G08_023T01_9000001978_13301cztM0_level2.evt modeM0/AS1G08_023T01_9000001978_13301cztM0_level2_quad_clean.evt
Size (bytes)480,720,960116,919,360
Size458.5 MB 111.5 MB
Events in quadrant A3,552,177778,865
Events in quadrant B3,547,267807,380
Events in quadrant C3,370,127770,516
Events in quadrant D3,638,231721,794

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148933
B0147642
C0142322
D0151622

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66381342.018680%
B66381482.229587%
C6638891.340765%
D66381342.018680%

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 9269 6641 0 0 0.00% 0.00%
B 9269 6641 6 6 0.06% 0.09%
C 9269 6641 4 4 0.04% 0.06%
D 9269 6641 44 44 0.47% 0.66%

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 15 144735 824.53 871 856 174.5
A 1 162 22223 122.45 871 856 174.5
A 9 143 18394 100.5 871 856 174.5
B 10 245 29036 171.79 880 861 164.0
B 0 197 20927 122.35 880 861 164.0
B 3 209 20220 118.04 880 861 164.0
C 15 208 53050 271.91 844 850 192.0
C 3 233 20318 101.41 844 850 192.0
C 13 61 6154 27.63 844 850 192.0
D 13 249 223386 1128.83 827 804 197.2
D 8 195 128186 646.02 827 804 197.2
D 2 136 55143 275.58 827 804 197.2

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