ASTROSAT CZTI

Data Quality Report

Orbit 13417

Creation date: 2024-06-27T16:40:28.481557
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/AS1A04_103T01_9000001988_13417cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13417cztM0_level2_quad_clean.evt
Size (bytes)505,097,28086,716,800
Size481.7 MB 82.7 MB
Events in quadrant A3,453,462554,380
Events in quadrant B3,602,421563,177
Events in quadrant C3,312,079545,252
Events in quadrant D4,492,765514,348

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143793
B0148072
C0138772
D0176982

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64361041.615911%
B64361562.423866%
C6436590.916718%
D6436941.460534%

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 7737 6437 4 4 0.05% 0.06%
B 7737 6437 52 52 0.67% 0.81%
C 7737 6437 0 0 0.00% 0.00%
D 7737 6437 16 16 0.21% 0.25%

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 15 73907 421.24 870 854 173.4
A 15 69 28356 158.58 870 854 173.4
A 0 226 7933 40.82 870 854 173.4
B 3 64 139082 861.04 865 847 160.5
B 4 142 49209 301.24 865 847 160.5
B 0 230 30590 185.26 865 847 160.5
C 3 233 67600 354.45 831 838 188.4
C 13 61 5974 27.27 831 838 188.4
C 14 220 3210 12.59 831 838 188.4
D 8 195 1061519 5404.34 823 800 196.3
D 1 52 144081 730.01 823 800 196.3
D 5 222 76508 385.73 823 800 196.3

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