ASTROSAT CZTI

Data Quality Report

Orbit 14424

Creation date: 2024-06-27T16:54:58.216226
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_201T03_9000002128_14424cztM0_level2.evt modeM0/AS1A04_201T03_9000002128_14424cztM0_level2_quad_clean.evt
Size (bytes)227,712,96043,012,800
Size217.2 MB 41.0 MB
Events in quadrant A1,162,537291,317
Events in quadrant B1,180,810291,747
Events in quadrant C2,480,324270,005
Events in quadrant D1,905,973274,469

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050040
B051100
C091010
D072820

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A243040.164609%
B243070.288066%
C243029612.181070%
D24301134.650206%

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 2431 2431 0 0 0.00% 0.00%
B 2431 2431 1 1 0.04% 0.04%
C 2431 2431 275 275 11.31% 11.31%
D 2431 2431 94 94 3.87% 3.87%

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 66781 1158.92 273 267 57.4
A 12 189 38245 661.72 273 267 57.4
A 3 1 2883 45.58 273 267 57.4
B 0 229 28933 538.88 270 264 53.2
B 4 142 23160 430.37 270 264 53.2
B 0 189 19340 358.56 270 264 53.2
C 3 233 1428109 23988.19 255 256 59.5
C 0 207 52109 871.14 255 256 59.5
C 13 61 1830 26.44 255 256 59.5
D 13 122 599008 8842.47 265 259 67.7
D 15 0 95311 1403.75 265 259 67.7
D 2 120 61341 902.07 265 259 67.7

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