ASTROSAT CZTI

Data Quality Report

Orbit 46702

Creation date: 2024-06-27T23:26:34.998647
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_092T20_9000006254_46702cztM0_level2.fits modeM0/AS1A13_092T20_9000006254_46702cztM0_level2_quad_clean.evt
Size (bytes)300,692,16061,830,720
Size286.8 MB 59.0 MB
Events in quadrant A3,886,317403,737
Events in quadrant B1,912,748422,620
Events in quadrant C1,882,066402,942
Events in quadrant D3,136,004358,839

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142390
B085170
C086010
D0121630

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A40221122.784684%
B402240.099453%
C4022300.745898%
D40231774.399702%

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 4022 4022 91 91 2.26% 2.26%
B 4022 4022 2 2 0.05% 0.05%
C 4022 4022 20 20 0.50% 0.50%
D 4023 4023 153 153 3.80% 3.80%

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 1947885 22013.7 415 405 88.5
A 13 248 288160 3252.69 415 405 88.5
A 9 191 9019 97.37 415 405 88.5
B 0 198 109878 1329.3 414 403 82.4
B 0 190 55433 668.2 414 403 82.4
B 15 36 25696 307.12 414 403 82.4
C 1 241 140200 1440.94 407 408 97.0
C 12 2 112537 1155.8 407 408 97.0
C 8 131 21916 221.7 407 408 97.0
D 1 52 663479 6410.32 405 392 103.4
D 13 249 308712 2980.65 405 392 103.4
D 13 29 245592 2370.45 405 392 103.4

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