ASTROSAT CZTI

Data Quality Report

Orbit 26031

Creation date: 2024-06-27T19:24:04.140288
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/AS1A09_033T02_9000003762_26031cztM0_level2.evt modeM0/AS1A09_033T02_9000003762_26031cztM0_level2_quad_clean.evt
Size (bytes)500,351,04095,299,200
Size477.2 MB 90.9 MB
Events in quadrant A3,510,508603,523
Events in quadrant B3,586,427608,021
Events in quadrant C3,526,957580,702
Events in quadrant D4,029,786582,114

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151320
B0153310
C0150660
D0168970

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7348620.843767%
B73491081.469588%
C73481482.014154%
D73481161.578661%

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 7643 7348 0 0 0.00% 0.00%
B 7644 7350 0 0 0.00% 0.00%
C 7643 7348 0 0 0.00% 0.00%
D 7643 7348 29 29 0.38% 0.39%

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 14578 74.69 906 886 183.3
A 13 254 10989 55.11 906 886 183.3
A 3 137 8515 41.62 906 886 183.3
B 2 0 47682 269.68 896 870 173.6
B 12 111 21154 116.85 896 870 173.6
B 11 111 19203 105.61 896 870 173.6
C 14 238 138244 673.74 863 865 203.9
C 3 233 26362 125.04 863 865 203.9
C 13 61 5921 24.8 863 865 203.9
D 1 52 475837 2108.78 875 853 225.2
D 7 223 100651 443.07 875 853 225.2
D 1 3 58017 253.79 875 853 225.2

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