ASTROSAT CZTI

Data Quality Report

Orbit 30561

Creation date: 2024-06-27T20:16:59.206287
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/AS1A10_055T01_9000004400_30561cztM0_level2.evt modeM0/AS1A10_055T01_9000004400_30561cztM0_level2_quad_clean.evt
Size (bytes)192,519,36045,668,160
Size183.6 MB 43.6 MB
Events in quadrant A1,181,867313,111
Events in quadrant B1,791,313310,954
Events in quadrant C1,224,200296,384
Events in quadrant D1,471,661293,111

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051131
B071181
C050931
D059331

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2342562.391119%
B2342833.543980%
C2343522.219377%
D2343542.304738%

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 2882 2343 3 3 0.10% 0.13%
B 2882 2343 1 1 0.03% 0.04%
C 2883 2344 0 0 0.00% 0.00%
D 2883 2344 33 33 1.14% 1.41%

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 12 96 47816 795.6 290 284 59.7
A 8 192 11323 184.77 290 284 59.7
A 13 254 4275 66.8 290 284 59.7
B 6 159 653013 11565.89 284 277 56.4
B 0 190 10652 183.84 284 277 56.4
B 12 111 6682 113.49 284 277 56.4
C 3 233 119096 1845.85 268 269 64.4
C 14 238 42776 660.3 268 269 64.4
C 0 10 8702 130.99 268 269 64.4
D 13 249 140478 2082.51 275 268 67.3
D 1 52 133313 1976.09 275 268 67.3
D 8 195 78788 1166.24 275 268 67.3

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