ASTROSAT CZTI

Data Quality Report

Orbit 12414

Creation date: 2024-06-27T16:26:58.674745
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/AS1A04_201T01_9000001844_12414cztM0_level2.evt modeM0/AS1A04_201T01_9000001844_12414cztM0_level2_quad_clean.evt
Size (bytes)541,252,80095,339,520
Size516.2 MB 90.9 MB
Events in quadrant A3,925,113601,810
Events in quadrant B4,198,609616,046
Events in quadrant C3,305,962610,049
Events in quadrant D4,478,794563,091

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0164403
B0172402
C0146912
D0181592

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7119831.165894%
B71192183.062228%
C7119340.477595%
D71192924.101700%

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 9110 7121 4 4 0.04% 0.06%
B 9110 7120 104 104 1.14% 1.46%
C 9110 7121 0 0 0.00% 0.00%
D 9110 7121 280 280 3.07% 3.93%

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 13 251 211846 1205.11 860 842 175.1
A 1 162 112539 637.94 860 842 175.1
A 12 189 101246 573.44 860 842 175.1
B 4 239 547855 3345.24 859 839 163.5
B 3 64 86129 521.59 859 839 163.5
B 0 197 41017 245.71 859 839 163.5
C 14 234 11726 55.62 842 845 195.6
C 1 16 10223 47.94 842 845 195.6
C 13 61 6031 26.51 842 845 195.6
D 1 52 1159008 5793.56 825 802 199.9
D 8 195 64603 319.14 825 802 199.9
D 13 104 44031 216.24 825 802 199.9

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