ASTROSAT CZTI

Data Quality Report

Orbit 22296

Creation date: 2024-06-27T18:39:09.480598
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_018T08_9000003296_22296cztM0_level2.evt modeM0/AS1A07_018T08_9000003296_22296cztM0_level2_quad_clean.evt
Size (bytes)183,329,28052,704,000
Size174.8 MB 50.3 MB
Events in quadrant A1,280,472354,461
Events in quadrant B1,306,986361,007
Events in quadrant C1,274,896341,202
Events in quadrant D1,493,227335,128

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A057320
B057780
C057390
D063080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A286030.104895%
B286140.139811%
C286150.174764%
D2861140.489339%

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 2860 2860 0 0 0.00% 0.00%
B 2861 2861 0 0 0.00% 0.00%
C 2861 2861 0 0 0.00% 0.00%
D 2861 2861 10 10 0.35% 0.35%

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 3417 45.11 332 325 68.5
A 0 226 2927 37.96 332 325 68.5
A 3 137 2736 35.18 332 325 68.5
B 0 190 19748 306.58 327 319 63.4
B 12 111 7605 114.97 327 319 63.4
B 11 111 6983 105.16 327 319 63.4
C 14 238 50267 675.78 311 312 73.9
C 8 128 6584 84.85 311 312 73.9
C 8 112 3079 37.43 311 312 73.9
D 12 235 117368 1474.75 319 309 79.4
D 1 52 93114 1169.19 319 309 79.4
D 13 172 48531 607.52 319 309 79.4

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