ASTROSAT CZTI

Data Quality Report

Orbit 43326

Creation date: 2024-06-27T22:50:37.275243
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/AS1A12_088T25_9000005866_43326cztM0_level2.fits modeM0/AS1A12_088T25_9000005866_43326cztM0_level2_quad_clean.evt
Size (bytes)117,558,72031,829,760
Size112.1 MB 30.4 MB
Events in quadrant A1,126,009213,607
Events in quadrant B934,065215,849
Events in quadrant C920,262208,206
Events in quadrant D1,222,170188,874

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A044741
B040561
C038481
D049261

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1883180.955921%
B188380.424854%
C188320.106213%
D1883442.336697%

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 1883 1883 9 9 0.48% 0.48%
B 1883 1883 1 1 0.05% 0.05%
C 1883 1883 0 0 0.00% 0.00%
D 1883 1883 42 42 2.23% 2.23%

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 10 83 268542 5837.81 206 201 46.0
A 15 237 37887 819.87 206 201 46.0
A 12 189 12743 272.85 206 201 46.0
B 0 186 72529 1678.45 203 197 43.1
B 0 245 34619 798.76 203 197 43.1
B 0 189 10443 237.76 203 197 43.1
C 15 214 81605 1666.0 197 196 48.9
C 3 233 62979 1284.83 197 196 48.9
C 7 220 4503 88.14 197 196 48.9
D 2 249 142528 2743.94 197 191 51.9
D 12 218 128923 2481.66 197 191 51.9
D 1 52 124215 2390.9 197 191 51.9

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