ASTROSAT CZTI

Data Quality Report

Orbit 45882

Creation date: 2024-06-27T23:17:16.518716
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/AS1C07_001T01_9000006136_45882cztM0_level2.fits modeM0/AS1C07_001T01_9000006136_45882cztM0_level2_quad_clean.evt
Size (bytes)717,589,44094,896,000
Size684.3 MB 90.5 MB
Events in quadrant A5,789,802720,957
Events in quadrant B13,679,112279,605
Events in quadrant C2,874,147743,934
Events in quadrant D3,696,618659,339

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0216023
B0452841
C0137251
D0160151

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67362153.191805%
B6737469069.615556%
C6737390.578893%
D67372153.191331%

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 7606 6737 13 13 0.17% 0.19%
B 7607 6737 3660 3660 48.11% 54.33%
C 7607 6738 2 2 0.03% 0.03%
D 7607 6738 128 128 1.68% 1.90%

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 10 83 2892016 18916.15 735 720 152.8
A 0 247 17575 110.27 735 720 152.8
A 2 79 13300 82.3 735 720 152.8
B 3 112 11522131 116913.53 506 492 98.5
B 12 18 51289 515.45 506 492 98.5
B 15 54 20247 200.46 506 492 98.5
C 12 2 25795 148.38 728 731 168.9
C 3 233 5629 29.0 728 731 168.9
C 13 61 4952 24.99 728 731 168.9
D 13 249 424820 2378.69 717 693 178.3
D 5 171 178947 999.73 717 693 178.3
D 2 249 123255 687.38 717 693 178.3

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