ASTROSAT CZTI

Data Quality Report

Orbit 19596

Creation date: 2024-06-27T18:04:35.142191
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/AS1T03_115T01_9000002914_19596cztM0_level2.evt modeM0/AS1T03_115T01_9000002914_19596cztM0_level2_quad_clean.evt
Size (bytes)465,940,800102,810,240
Size444.4 MB 98.0 MB
Events in quadrant A3,094,763678,005
Events in quadrant B3,193,121700,223
Events in quadrant C3,156,658666,665
Events in quadrant D4,233,191623,649

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133862
B0136632
C0136062
D0168922

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6378150.235183%
B6378370.580119%
C6378590.925055%
D63782063.229853%

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 7583 6379 0 0 0.00% 0.00%
B 7583 6379 3 3 0.04% 0.05%
C 7583 6379 2 2 0.03% 0.03%
D 7583 6379 190 190 2.51% 2.98%

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 11 29 46400 288.21 788 775 158.3
A 13 254 9036 52.18 788 775 158.3
A 0 226 6710 37.49 788 775 158.3
B 4 216 30015 195.6 794 775 149.5
B 7 220 19721 126.74 794 775 149.5
B 12 111 17613 112.64 794 775 149.5
C 14 238 119802 673.4 762 766 176.8
C 5 112 44589 247.91 762 766 176.8
C 3 233 15155 81.4 762 766 176.8
D 1 52 1102407 6099.5 750 730 180.6
D 7 38 88499 485.94 750 730 180.6
D 7 238 70607 386.88 750 730 180.6

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