ASTROSAT CZTI

Data Quality Report

Orbit 05819

Creation date: 2024-06-27T14:59:47.641968
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/AS1G06_168T07_9000000750_05819cztM0_level2.evt modeM0/AS1G06_168T07_9000000750_05819cztM0_level2_quad_clean.evt
Size (bytes)399,133,44073,307,520
Size380.6 MB 69.9 MB
Events in quadrant A2,985,592452,805
Events in quadrant B2,776,344463,839
Events in quadrant C2,728,892460,509
Events in quadrant D3,205,339440,228

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125262
B0117921
C0118113
D0132501

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5760190.329861%
B5760310.538194%
C5759360.625109%
D57601803.125000%

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 7060 5762 0 0 0.00% 0.00%
B 7060 5762 1 1 0.01% 0.02%
C 7060 5762 0 0 0.00% 0.00%
D 7060 5762 144 144 2.04% 2.50%

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 15 236 315239 2269.97 686 672 138.6
A 15 79 20758 144.94 686 672 138.6
A 12 194 6738 43.77 686 672 138.6
B 15 204 49379 371.71 697 681 131.0
B 12 111 11919 85.78 697 681 131.0
B 11 111 9497 67.29 697 681 131.0
C 9 16 48468 305.12 683 686 156.6
C 8 79 6978 40.18 683 686 156.6
C 13 61 5482 30.63 683 686 156.6
D 8 230 404871 2482.04 670 649 162.9
D 11 241 193594 1184.74 670 649 162.9
D 8 195 32387 194.88 670 649 162.9

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