ASTROSAT CZTI

Data Quality Report

Orbit 14062

Creation date: 2024-06-27T16:49:51.653075
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/AS1G08_055T01_9000002076_14062cztM0_level2.evt modeM0/AS1G08_055T01_9000002076_14062cztM0_level2_quad_clean.evt
Size (bytes)123,811,20026,262,720
Size118.1 MB 25.0 MB
Events in quadrant A788,164174,811
Events in quadrant B837,754177,817
Events in quadrant C820,953168,735
Events in quadrant D1,191,521155,619

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A033332
B034481
C033441
D045371

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1595483.009404%
B1595644.012539%
C1595523.260188%
D159517310.846395%

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 2261 1597 0 0 0.00% 0.00%
B 2261 1597 0 0 0.00% 0.00%
C 2261 1597 0 0 0.00% 0.00%
D 2261 1597 97 97 4.29% 6.07%

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 12 189 6265 141.8 202 196 42.8
A 8 15 3061 66.94 202 196 42.8
A 9 143 2660 57.57 202 196 42.8
B 3 64 11409 275.3 203 197 40.7
B 3 209 11162 269.23 203 197 40.7
B 4 80 10839 261.3 203 197 40.7
C 3 233 29261 594.39 202 203 48.9
C 13 61 1511 26.76 202 203 48.9
C 10 22 1130 18.96 202 203 48.9
D 2 152 362302 7319.78 192 187 49.5
D 1 52 34748 698.62 192 187 49.5
D 8 195 21170 424.15 192 187 49.5

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