ASTROSAT CZTI

Data Quality Report

Orbit 12115

Creation date: 2024-06-27T16:22:36.616894
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/AS1G08_065T01_9000001796_12115cztM0_level2.evt modeM0/AS1G08_065T01_9000001796_12115cztM0_level2_quad_clean.evt
Size (bytes)558,596,16087,969,600
Size532.7 MB 83.9 MB
Events in quadrant A3,727,862569,977
Events in quadrant B5,182,113542,338
Events in quadrant C3,238,680568,016
Events in quadrant D4,341,649543,622

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153463
B0200782
C0135822
D0171892

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63021522.411933%
B63024557.219930%
C6302821.301174%
D63021672.649952%

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 7633 6304 20 20 0.26% 0.32%
B 7633 6303 251 251 3.29% 3.98%
C 7633 6304 0 0 0.00% 0.00%
D 7633 6304 61 61 0.80% 0.97%

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 1 162 150144 897.72 835 817 166.3
A 14 63 105264 627.91 835 817 166.3
A 1 178 63185 374.94 835 817 166.3
B 4 239 1167897 7752.69 814 797 150.5
B 4 206 427322 2833.28 814 797 150.5
B 15 204 116375 767.75 814 797 150.5
C 15 208 27581 143.63 822 828 186.3
C 13 61 6123 28.43 822 828 186.3
C 14 234 3957 16.8 822 828 186.3
D 1 52 499860 2595.82 818 799 192.3
D 4 95 275380 1428.21 818 799 192.3
D 8 195 235710 1221.87 818 799 192.3

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