ASTROSAT CZTI

Data Quality Report

Orbit 08267

Creation date: 2024-06-27T15:30:20.586092
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_136T01_9000001148_08267cztM0_level2.evt modeM0/AS1G06_136T01_9000001148_08267cztM0_level2_quad_clean.evt
Size (bytes)503,398,08093,369,600
Size480.1 MB 89.0 MB
Events in quadrant A3,560,418573,191
Events in quadrant B3,640,161587,442
Events in quadrant C3,590,135587,625
Events in quadrant D3,960,231572,611

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154773
B0154972
C0154912
D0168812

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72831542.114513%
B72831482.032130%
C72831502.059591%
D72831632.238089%

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 9198 7285 0 0 0.00% 0.00%
B 9198 7285 0 0 0.00% 0.00%
C 9198 7285 22 22 0.24% 0.30%
D 9198 7285 19 19 0.21% 0.26%

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 15 234 74322 395.87 904 884 185.5
A 0 254 10129 49.84 904 884 185.5
A 0 226 8488 40.99 904 884 185.5
B 11 51 66376 371.93 910 889 176.1
B 0 214 26518 145.56 910 889 176.1
B 12 111 19534 105.89 910 889 176.1
C 9 54 123121 588.04 889 895 207.9
C 13 61 6681 27.84 889 895 207.9
C 3 202 2111 5.85 889 895 207.9
D 1 52 350972 1642.08 886 863 213.2
D 8 230 168725 787.31 886 863 213.2
D 2 152 40682 186.76 886 863 213.2

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