ASTROSAT CZTI

Data Quality Report

Orbit 47418

Creation date: 2024-07-05T04:14:07.063617
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/AS1A13_053T01_9000006326_47418cztM0_level2.fits modeM0/AS1A13_053T01_9000006326_47418cztM0_level2_quad_clean.evt
Size (bytes)574,724,160102,723,840
Size548.1 MB 98.0 MB
Events in quadrant A6,961,381704,745
Events in quadrant B3,004,691755,787
Events in quadrant C6,776,322553,255
Events in quadrant D4,034,172648,699

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0248402
B0133742
C0247082
D0165052

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64203936.121495%
B6420590.919003%
C6420161225.109034%
D64202103.271028%

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 7610 6421 154 154 2.02% 2.40%
B 7609 6419 11 11 0.14% 0.17%
C 7609 6419 1528 1528 20.08% 23.80%
D 7609 6419 193 193 2.54% 3.01%

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 3606033 24564.54 711 696 146.8
A 9 191 382438 2600.95 711 696 146.8
A 9 240 220888 1500.25 711 696 146.8
B 0 246 29724 206.35 724 701 140.6
B 0 198 25147 173.81 724 701 140.6
B 5 255 22643 156.0 724 701 140.6
C 12 2 4438913 31909.43 592 596 139.1
C 12 250 10438 70.76 592 596 139.1
C 1 3 9255 62.25 592 596 139.1
D 2 249 466920 2692.75 700 678 173.1
D 4 223 357147 2058.76 700 678 173.1
D 12 128 153525 882.76 700 678 173.1

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