ASTROSAT CZTI

Data Quality Report

Orbit 32404

Creation date: 2024-06-27T20:39:50.024250
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/AS1T04_059T01_9000004704_32404cztM0_level2.evt modeM0/AS1T04_059T01_9000004704_32404cztM0_level2_quad_clean.evt
Size (bytes)1,053,267,840142,827,840
Size1004.5 MB 136.2 MB
Events in quadrant A4,781,129961,488
Events in quadrant B14,601,598821,140
Events in quadrant C5,513,849924,426
Events in quadrant D6,315,991913,153

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0208093
B0503972
C0226632
D0252692

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02100
B02100
C02100
D02100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A101541131.112862%
B10154338533.336616%
C101544194.126453%
D101542442.402994%

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 11679 10156 0 0 0.00% 0.00%
B 11679 10156 2633 2633 22.54% 25.93%
C 11679 10156 85 85 0.73% 0.84%
D 11679 10156 138 138 1.18% 1.36%

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 13 254 19658 74.37 1234 1209 248.1
A 13 6 12674 46.22 1234 1209 248.1
A 3 137 12525 45.62 1234 1209 248.1
B 4 80 7386626 34824.97 1102 1073 212.1
B 6 159 2462463 11606.15 1102 1073 212.1
B 0 190 209258 981.65 1102 1073 212.1
C 3 233 321375 1170.13 1155 1162 273.7
C 0 10 295270 1074.74 1155 1162 273.7
C 14 238 230324 837.41 1155 1162 273.7
D 8 195 586823 2060.09 1190 1161 284.3
D 1 47 522542 1833.98 1190 1161 284.3
D 12 233 200231 700.24 1190 1161 284.3

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