ASTROSAT CZTI

Data Quality Report

Orbit 23443

Creation date: 2024-06-27T18:54:25.343071
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/AS1A07_100T02_9000003470_23443cztM0_level2.evt modeM0/AS1A07_100T02_9000003470_23443cztM0_level2_quad_clean.evt
Size (bytes)537,373,440107,449,920
Size512.5 MB 102.5 MB
Events in quadrant A3,444,264701,217
Events in quadrant B3,760,840714,283
Events in quadrant C3,650,767677,611
Events in quadrant D4,916,358646,069

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150263
B0158422
C0154142
D0195642

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7399270.364914%
B7399841.135289%
C7399811.094743%
D74003414.608108%

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 8979 7401 0 0 0.00% 0.00%
B 8979 7400 23 23 0.26% 0.31%
C 8979 7400 14 14 0.16% 0.19%
D 8980 7402 274 274 3.05% 3.70%

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 12786 65.85 892 872 180.9
A 3 137 8031 39.57 892 872 180.9
A 0 226 7685 37.65 892 872 180.9
B 5 172 85466 500.04 894 874 169.2
B 0 229 68448 399.44 894 874 169.2
B 0 189 45816 265.66 894 874 169.2
C 14 238 135566 672.61 859 865 200.3
C 10 9 131986 654.73 859 865 200.3
C 7 247 15051 70.84 859 865 200.3
D 7 238 885313 4308.22 847 822 205.3
D 1 52 558573 2716.72 847 822 205.3
D 12 233 201171 975.87 847 822 205.3

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