ASTROSAT CZTI

Data Quality Report

Orbit 09604

Creation date: 2024-06-27T15:48:16.594822
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/AS1G05_238T01_9000001364_09604cztM0_level2.evt modeM0/AS1G05_238T01_9000001364_09604cztM0_level2_quad_clean.evt
Size (bytes)719,611,200130,982,400
Size686.3 MB 124.9 MB
Events in quadrant A5,038,915824,544
Events in quadrant B5,067,788816,693
Events in quadrant C4,953,982806,992
Events in quadrant D5,998,485769,909

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0264694188
B0266284258
C0265534174
D0304635273

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A026246
B026254
C026137
D026234

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121
B0120
C0122
D0131

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10820540.499076%
B10808880.814212%
C10854700.644924%
D107001131.056075%

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 14083 11885 0 0 0.00% 0.00%
B 14083 11831 2 2 0.01% 0.02%
C 14083 11884 18 18 0.13% 0.15%
D 14083 11777 44 44 0.31% 0.37%

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 1 162 37154 137.88 1283 1255 260.4
A 8 157 20997 75.83 1283 1255 260.4
A 1 178 15733 55.61 1283 1255 260.4
B 0 214 50217 198.58 1276 1245 246.6
B 12 111 28517 110.59 1276 1245 246.6
B 11 111 23192 88.99 1276 1245 246.6
C 14 234 121443 416.21 1239 1248 288.8
C 13 61 9251 27.71 1239 1248 288.8
C 14 67 5261 13.9 1239 1248 288.8
D 8 195 1019517 3343.98 1211 1177 304.5
D 1 52 192459 628.12 1211 1177 304.5
D 13 122 48630 155.82 1211 1177 304.5

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