ASTROSAT CZTI

Data Quality Report

Orbit 13384

Creation date: 2024-06-27T16:39:59.164655
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_13384cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13384cztM0_level2_quad_clean.evt
Size (bytes)480,827,52070,663,680
Size458.6 MB 67.4 MB
Events in quadrant A3,343,234421,453
Events in quadrant B3,740,016424,894
Events in quadrant C3,489,484416,731
Events in quadrant D3,529,246404,539

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143273
B0154102
C0147522
D0150922

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67681211.787825%
B67681722.541371%
C6768931.374113%
D67681241.832151%

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 8679 6771 14 14 0.16% 0.21%
B 8679 6771 35 35 0.40% 0.52%
C 8679 6771 6 6 0.07% 0.09%
D 8679 6771 27 27 0.31% 0.40%

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 9 143 65094 374.61 846 825 171.6
A 1 162 13711 75.11 846 825 171.6
A 0 226 7471 38.74 846 825 171.6
B 0 85 222929 1388.45 845 825 160.0
B 3 64 70168 433.49 845 825 160.0
B 0 230 36671 224.09 845 825 160.0
C 3 233 137582 717.56 826 830 190.6
C 14 220 126231 658.0 826 830 190.6
C 13 61 5853 26.36 826 830 190.6
D 13 249 148522 749.38 824 799 197.1
D 1 52 124361 626.82 824 799 197.1
D 2 136 95865 482.26 824 799 197.1

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