ASTROSAT CZTI

Data Quality Report

Orbit 23608

Creation date: 2024-06-27T18:56:45.440281
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_178T01_9000003488_23608cztM0_level2.evt modeM0/AS1T03_178T01_9000003488_23608cztM0_level2_quad_clean.evt
Size (bytes)502,536,96097,632,000
Size479.3 MB 93.1 MB
Events in quadrant A3,257,168629,712
Events in quadrant B3,495,810662,194
Events in quadrant C3,966,176626,059
Events in quadrant D4,071,329597,471

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132932
B0140662
C0159482
D0161592

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6325160.252964%
B6325691.090909%
C63251382.181818%
D63251342.118577%

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 7655 6326 0 0 0.00% 0.00%
B 7655 6325 12 12 0.16% 0.19%
C 7655 6326 41 41 0.54% 0.65%
D 7655 6326 81 81 1.06% 1.28%

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 10461 57.19 845 828 168.4
A 0 226 7198 37.82 845 828 168.4
A 3 137 6898 36.04 845 828 168.4
B 3 64 99225 621.73 857 836 158.3
B 12 111 19088 115.34 857 836 158.3
B 11 111 16779 100.75 857 836 158.3
C 10 9 430379 2207.62 838 847 194.6
C 14 238 133357 681.05 838 847 194.6
C 0 10 116683 595.35 838 847 194.6
D 1 52 928895 4621.83 830 809 200.8
D 2 234 25210 121.52 830 809 200.8
D 9 85 9017 40.88 830 809 200.8

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