ASTROSAT CZTI

Data Quality Report

Orbit 30710

Creation date: 2024-06-27T20:18:53.329987
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_008T01_9000004432_30710cztM0_level2.evt modeM0/AS1C05_008T01_9000004432_30710cztM0_level2_quad_clean.evt
Size (bytes)1,058,204,160139,703,040
Size1009.2 MB 133.2 MB
Events in quadrant A5,212,378911,402
Events in quadrant B8,057,189904,989
Events in quadrant C5,929,212874,458
Events in quadrant D12,165,268835,764

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220222
B0313372
C0239322
D0433432

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02080
B02080
C02080
D02080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A101641000.983865%
B101632402.361507%
C101633113.060120%
D10163115711.384434%

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 11669 10164 52 52 0.45% 0.51%
B 11668 10163 71 71 0.61% 0.70%
C 11668 10163 122 122 1.05% 1.20%
D 11668 10163 1027 1027 8.80% 10.11%

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 0 13 393091 1570.04 1242 1218 249.6
A 8 192 25105 95.7 1242 1218 249.6
A 13 254 18409 68.87 1242 1218 249.6
B 6 159 2934364 12463.34 1225 1192 235.3
B 6 36 127668 537.41 1225 1192 235.3
B 5 172 71434 298.47 1225 1192 235.3
C 10 22 762995 2742.74 1184 1193 277.8
C 3 233 269411 965.67 1184 1193 277.8
C 14 238 190536 681.7 1184 1193 277.8
D 8 195 6181787 22339.72 1161 1131 276.7
D 1 52 1201613 4339.09 1161 1131 276.7
D 10 253 170858 613.47 1161 1131 276.7

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