ASTROSAT CZTI

Data Quality Report

Orbit 48038

Creation date: 2024-09-10T18:57:59.566556
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/AS1A13_053T01_9000006388_48038cztM0_level2.fits modeM0/AS1A13_053T01_9000006388_48038cztM0_level2_quad_clean.evt
Size (bytes)203,955,84044,956,800
Size194.5 MB 42.9 MB
Events in quadrant A3,109,283288,015
Events in quadrant B1,460,987304,756
Events in quadrant C1,241,562297,716
Events in quadrant D1,517,953270,229

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112261
B062991
C058661
D066221

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A28071625.771286%
B2807441.567510%
C2807170.605629%
D2807863.063769%

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 2807 2807 23 23 0.82% 0.82%
B 2807 2807 23 23 0.82% 0.82%
C 2807 2807 9 9 0.32% 0.32%
D 2807 2807 45 45 1.60% 1.60%

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 10 83 1925233 30425.36 299 292 63.3
A 0 243 8836 135.05 299 292 63.3
A 0 31 7933 120.77 299 292 63.3
B 0 200 127285 2109.84 302 293 60.2
B 7 221 48651 803.42 302 293 60.2
B 0 198 46933 774.88 302 293 60.2
C 14 254 78019 1113.61 293 294 69.8
C 14 67 4902 66.02 293 294 69.8
C 1 3 4796 64.5 293 294 69.8
D 13 29 128386 1707.13 290 280 75.0
D 11 224 64291 853.01 290 280 75.0
D 11 192 62184 824.93 290 280 75.0

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