ASTROSAT CZTI

Data Quality Report

Orbit 25108

Creation date: 2024-06-27T19:13:56.797909
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/AS1C05_012T06_9000003674_25108cztM0_level2.evt modeM0/AS1C05_012T06_9000003674_25108cztM0_level2_quad_clean.evt
Size (bytes)475,056,00088,424,640
Size453.0 MB 84.3 MB
Events in quadrant A2,894,482581,136
Events in quadrant B2,994,299587,679
Events in quadrant C3,345,547549,935
Events in quadrant D4,728,611522,976

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126870
B0129220
C0135930
D0182650

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6248570.912292%
B6249570.912146%
C62491111.776284%
D62494026.433029%

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 7108 6248 0 0 0.00% 0.00%
B 7109 6249 1 1 0.01% 0.02%
C 7109 6249 19 19 0.27% 0.30%
D 7109 6249 346 346 4.87% 5.54%

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 10629 65.31 750 732 151.5
A 3 137 6623 38.88 750 732 151.5
A 0 226 6354 37.1 750 732 151.5
B 0 190 37900 258.13 745 725 144.0
B 0 189 31946 216.78 745 725 144.0
B 12 111 17408 115.84 745 725 144.0
C 7 247 291919 1740.6 713 717 167.3
C 0 207 115613 686.77 713 717 167.3
C 14 238 113781 675.82 713 717 167.3
D 1 52 1140123 6599.08 708 686 172.7
D 8 195 743768 4303.58 708 686 172.7
D 12 233 100015 575.27 708 686 172.7

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