ASTROSAT CZTI

Data Quality Report

Orbit 14527

Creation date: 2024-06-27T16:56:26.733684
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_212T02_9000002140_14527cztM0_level2.evt modeM0/AS1A04_212T02_9000002140_14527cztM0_level2_quad_clean.evt
Size (bytes)200,007,36050,241,600
Size190.7 MB 47.9 MB
Events in quadrant A1,479,130334,352
Events in quadrant B1,466,481333,953
Events in quadrant C1,463,430332,252
Events in quadrant D1,458,794323,450

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A063360
B061830
C060760
D061990

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A275960.217470%
B2759291.051105%
C275930.108735%
D2759240.869880%

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 2760 2760 0 0 0.00% 0.00%
B 2760 2760 19 19 0.69% 0.69%
C 2760 2760 3 3 0.11% 0.11%
D 2760 2760 14 14 0.51% 0.51%

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 249433 3984.91 307 301 62.5
A 0 23 19198 302.26 307 301 62.5
A 12 189 16636 261.28 307 301 62.5
B 0 228 74264 1256.95 306 298 58.8
B 0 245 45840 773.92 306 298 58.8
B 0 219 32557 548.2 306 298 58.8
C 3 233 249004 3527.36 301 302 70.5
C 0 207 37235 523.82 301 302 70.5
C 13 61 2146 26.15 301 302 70.5
D 2 136 94421 1159.27 300 293 81.2
D 12 110 72012 883.29 300 293 81.2
D 12 233 31166 380.23 300 293 81.2

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