ASTROSAT CZTI

Data Quality Report

Orbit 29447

Creation date: 2024-06-27T20:04:12.792068
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_110T02_9000004234_29447cztM0_level2.evt modeM0/AS1A10_110T02_9000004234_29447cztM0_level2_quad_clean.evt
Size (bytes)818,870,40078,433,920
Size780.9 MB 74.8 MB
Events in quadrant A3,648,073477,142
Events in quadrant B3,801,100482,913
Events in quadrant C4,048,825463,812
Events in quadrant D12,793,327428,351

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155212
B0158892
C0164452
D0431478

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75011211.613118%
B75021862.479339%
C75022693.585710%
D7501400953.446207%

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 7616 7503 0 0 0.00% 0.00%
B 7617 7504 10 10 0.13% 0.13%
C 7617 7504 1 1 0.01% 0.01%
D 7616 7503 3007 3007 39.48% 40.08%

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 13 254 12949 62.47 943 921 192.5
A 3 137 9436 44.23 943 921 192.5
A 0 226 8085 37.21 943 921 192.5
B 0 156 49602 269.98 931 906 180.4
B 0 229 39924 216.32 931 906 180.4
B 0 189 25287 135.17 931 906 180.4
C 3 233 318742 1511.57 895 901 210.3
C 14 238 160765 760.27 895 901 210.3
C 14 254 23858 109.18 895 901 210.3
D 12 33 4815952 27404.02 726 706 175.7
D 7 80 2157665 12275.46 726 706 175.7
D 13 104 2049189 11658.11 726 706 175.7

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