ASTROSAT CZTI

Data Quality Report

Orbit 25597

Creation date: 2024-06-27T19:19:22.881030
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/AS1A09_043T02_9000003726_25597cztM0_level2.evt modeM0/AS1A09_043T02_9000003726_25597cztM0_level2_quad_clean.evt
Size (bytes)239,895,36042,131,520
Size228.8 MB 40.2 MB
Events in quadrant A1,912,958286,604
Events in quadrant B1,142,235293,135
Events in quadrant C1,046,333279,437
Events in quadrant D3,005,102249,441

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A074320
B047920
C046570
D0105340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2313100.432339%
B231430.129646%
C231460.259291%
D231446119.922213%

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 2313 2313 7 7 0.30% 0.30%
B 2314 2314 0 0 0.00% 0.00%
C 2314 2314 1 1 0.04% 0.04%
D 2314 2314 381 381 16.46% 16.46%

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 6 16 481740 8678.28 266 260 55.5
A 8 192 386501 6961.68 266 260 55.5
A 4 2 16670 295.78 266 260 55.5
B 0 219 68497 1332.31 263 258 51.2
B 0 190 33990 658.59 263 258 51.2
B 12 111 5653 105.33 263 258 51.2
C 14 238 39118 636.37 253 255 61.1
C 3 233 11455 183.4 253 255 61.1
C 0 207 6410 100.79 253 255 61.1
D 1 52 1851236 30221.25 244 236 61.2
D 8 195 98922 1611.24 244 236 61.2
D 2 244 67792 1102.99 244 236 61.2

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