ASTROSAT CZTI

Data Quality Report

Orbit 13403

Creation date: 2024-06-27T16:40:17.471752
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_103T01_9000001988_13403cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13403cztM0_level2_quad_clean.evt
Size (bytes)461,324,16093,358,080
Size440.0 MB 89.0 MB
Events in quadrant A3,146,433609,275
Events in quadrant B3,448,330624,556
Events in quadrant C3,157,763599,804
Events in quadrant D3,805,562568,632

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132042
B0142381
C0132441
D0154861

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6093280.459544%
B6093841.378631%
C6093180.295421%
D6093560.919087%

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 7459 6095 3 3 0.04% 0.05%
B 7459 6094 23 23 0.31% 0.38%
C 7459 6095 8 8 0.11% 0.13%
D 7459 6095 28 28 0.38% 0.46%

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 15 69 34587 209.87 805 791 161.0
A 1 162 10694 61.5 805 791 161.0
A 0 226 7294 40.38 805 791 161.0
B 3 64 201809 1336.63 807 788 150.4
B 4 142 54917 359.92 807 788 150.4
B 12 111 16555 104.84 807 788 150.4
C 14 220 95559 536.81 770 777 176.6
C 3 233 59198 330.87 770 777 176.6
C 13 61 5573 27.16 770 777 176.6
D 8 195 583904 3254.82 758 738 179.2
D 1 52 273398 1521.79 758 738 179.2
D 2 136 44429 243.85 758 738 179.2

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