ASTROSAT CZTI

Data Quality Report

Orbit 31527

Creation date: 2024-06-27T20:29:36.358105
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_056T01_9000004598_31527cztM0_level2.evt modeM0/AS1A10_056T01_9000004598_31527cztM0_level2_quad_clean.evt
Size (bytes)239,290,56037,722,240
Size228.2 MB 36.0 MB
Events in quadrant A1,322,131249,649
Events in quadrant B1,965,678255,303
Events in quadrant C2,363,855233,341
Events in quadrant D1,433,461233,489

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A053781
B074512
C087441
D058361

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2360230.974576%
B2359642.713014%
C235926611.275964%
D2359431.822806%

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 3740 2361 8 8 0.21% 0.34%
B 3739 2359 1 1 0.03% 0.04%
C 3739 2359 31 31 0.83% 1.31%
D 3739 2360 17 17 0.45% 0.72%

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 0 13 92961 1424.21 319 312 65.1
A 13 254 4044 57.36 319 312 65.1
A 3 137 2945 40.47 319 312 65.1
B 6 159 633531 10301.16 320 314 61.5
B 4 80 68910 1115.92 320 314 61.5
B 12 111 6822 105.87 320 314 61.5
C 3 233 1053168 14889.78 299 301 70.7
C 0 10 62961 886.15 299 301 70.7
C 14 238 48322 679.12 299 301 70.7
D 8 195 143929 1953.7 305 297 73.5
D 2 250 55435 749.99 305 297 73.5
D 12 233 35344 476.71 305 297 73.5

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