ASTROSAT CZTI

Data Quality Report

Orbit 05896

Creation date: 2024-06-27T15:00:35.769037
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/AS1A02_114T01_9000000764_05896cztM0_level2.evt modeM0/AS1A02_114T01_9000000764_05896cztM0_level2_quad_clean.evt
Size (bytes)83,131,2006,963,840
Size79.3 MB 6.6 MB
Events in quadrant A615,22635,512
Events in quadrant B600,73335,979
Events in quadrant C616,45633,545
Events in quadrant D619,15033,486

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0202
C0202
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02699289
B02653301
C02715269
D02763299

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A91824326.470588%
B91323826.067908%
C92615917.170626%
D91819421.132898%

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 1012 992 0 0 0.00% 0.00%
B 1012 995 0 0 0.00% 0.00%
C 1012 999 0 0 0.00% 0.00%
D 1012 996 0 0 0.00% 0.00%

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 15 236 8862 241.78 156 151 36.0
A 8 15 2053 52.79 156 151 36.0
A 12 194 1596 40.11 156 151 36.0
B 12 111 3483 95.39 154 148 35.0
B 15 204 3367 92.07 154 148 35.0
B 11 111 2655 71.71 154 148 35.0
C 14 67 1366 29.83 157 157 40.5
C 13 61 1261 27.24 157 157 40.5
C 8 222 695 13.27 157 157 40.5
D 2 152 15518 362.59 158 151 42.4
D 2 14 3964 89.97 158 151 42.4
D 2 206 3639 82.3 158 151 42.4

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