ASTROSAT CZTI

Data Quality Report

Orbit 10248

Creation date: 2024-06-27T15:57:06.301267
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/AS1A03_069T03_9000001478_10248cztM0_level2.evt modeM0/AS1A03_069T03_9000001478_10248cztM0_level2_quad_clean.evt
Size (bytes)124,061,76012,916,800
Size118.3 MB 12.3 MB
Events in quadrant A887,44668,632
Events in quadrant B931,03070,091
Events in quadrant C813,17667,478
Events in quadrant D1,011,89363,818

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A035102
B037251
C033521
D041051

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A162920.122775%
B162990.552486%
C162910.061387%
D162990.552486%

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 1629 1629 0 0 0.00% 0.00%
B 1629 1629 6 6 0.37% 0.37%
C 1629 1629 0 0 0.00% 0.00%
D 1629 1629 7 7 0.43% 0.43%

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 34442 757.89 218 214 45.2
A 15 174 12338 268.45 218 214 45.2
A 0 226 2112 42.03 218 214 45.2
B 10 247 26515 622.26 215 210 42.3
B 0 214 24427 572.87 215 210 42.3
B 4 81 19325 452.18 215 210 42.3
C 13 61 1588 28.19 207 209 48.9
C 14 67 1437 25.1 207 209 48.9
C 0 207 1077 17.74 207 209 48.9
D 8 195 136216 2638.93 210 204 51.5
D 1 52 23683 455.54 210 204 51.5
D 13 104 11783 224.66 210 204 51.5

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