ASTROSAT CZTI

Data Quality Report

Orbit 09267

Creation date: 2024-06-27T15:43:37.792147
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/AS1A03_091T05_9000001300_09267cztM0_level2.evt modeM0/AS1A03_091T05_9000001300_09267cztM0_level2_quad_clean.evt
Size (bytes)534,496,32073,728,000
Size509.7 MB 70.3 MB
Events in quadrant A4,591,635431,177
Events in quadrant B3,532,527441,597
Events in quadrant C3,368,836433,332
Events in quadrant D4,196,929416,417

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A018415125
B015378120
C01517799
D017537108

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73203294.494536%
B73122373.241247%
C73191852.527668%
D73242463.358820%

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 7627 7365 51 51 0.67% 0.69%
B 7627 7366 1 1 0.01% 0.01%
C 7627 7365 0 0 0.00% 0.00%
D 7627 7368 53 53 0.69% 0.72%

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 8 5 898471 4987.51 872 852 180.0
A 15 174 142776 788.58 872 852 180.0
A 5 16 78573 431.84 872 852 180.0
B 0 214 47129 270.52 883 858 171.0
B 12 111 18596 103.71 883 858 171.0
B 0 245 16096 89.09 883 858 171.0
C 9 68 15356 72.1 857 857 201.1
C 13 61 6515 28.13 857 857 201.1
C 8 128 4681 19.01 857 857 201.1
D 1 52 661792 2941.86 846 824 224.7
D 7 71 173528 768.68 846 824 224.7
D 2 136 107095 472.99 846 824 224.7

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