ASTROSAT CZTI

Data Quality Report

Orbit 07476

Creation date: 2024-06-27T15:20:15.343306
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/AS1G06_116T01_9000001026_07476cztM0_level2.evt modeM0/AS1G06_116T01_9000001026_07476cztM0_level2_quad_clean.evt
Size (bytes)84,686,40026,481,600
Size80.8 MB 25.3 MB
Events in quadrant A601,714169,052
Events in quadrant B616,941172,871
Events in quadrant C595,958174,842
Events in quadrant D640,281168,909

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A031291
B031280
C031250
D031510

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A156500.000000%
B156510.063898%
C156500.000000%
D156500.000000%

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 1565 1565 0 0 0.00% 0.00%
B 1565 1565 0 0 0.00% 0.00%
C 1565 1565 0 0 0.00% 0.00%
D 1565 1565 0 0 0.00% 0.00%

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 8 15 2563 71.04 155 152 33.9
A 0 226 1445 38.1 155 152 33.9
A 12 194 1344 35.12 155 152 33.9
B 12 111 3303 97.2 158 155 32.4
B 11 111 2519 72.99 158 155 32.4
B 14 111 1830 51.72 158 155 32.4
C 13 61 1245 29.61 152 153 36.9
C 9 68 1089 25.38 152 153 36.9
C 1 16 725 15.51 152 153 36.9
D 12 221 43108 1142.16 148 143 37.6
D 8 195 16993 447.93 148 143 37.6
D 5 233 9543 249.89 148 143 37.6

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