ASTROSAT CZTI

Data Quality Report

Orbit 25576

Creation date: 2024-06-27T19:19:11.378084
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/AS1A09_043T02_9000003726_25576cztM0_level2.evt modeM0/AS1A09_043T02_9000003726_25576cztM0_level2_quad_clean.evt
Size (bytes)573,431,04066,585,600
Size546.9 MB 63.5 MB
Events in quadrant A3,569,403411,342
Events in quadrant B3,682,357420,300
Events in quadrant C3,547,718386,059
Events in quadrant D6,134,014351,808

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143000
B0147960
C0142410
D0227810

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6397580.906675%
B6396791.235147%
C6396961.500938%
D63966339.896811%

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 7702 6398 0 0 0.00% 0.00%
B 7701 6397 0 0 0.00% 0.00%
C 7701 6397 0 0 0.00% 0.00%
D 7701 6397 503 503 6.53% 7.86%

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 9733 48.17 925 911 183.1
A 0 226 8002 38.72 925 911 183.1
A 3 137 7526 36.12 925 911 183.1
B 0 219 34881 197.6 924 908 171.9
B 12 111 20063 111.41 924 908 171.9
B 11 111 17575 96.94 924 908 171.9
C 14 238 139242 695.88 861 871 198.8
C 3 233 48788 240.98 861 871 198.8
C 13 61 5901 25.3 861 871 198.8
D 1 52 1971763 9585.56 847 823 205.6
D 8 195 731184 3552.07 847 823 205.6
D 2 244 198654 962.14 847 823 205.6

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