ASTROSAT CZTI

Data Quality Report

Orbit 02113

Creation date: 2024-06-27T14:14:22.921339
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/AS1SLEW_01234_9000000327_02113cztM0_level2.evt modeM0/AS1SLEW_01234_9000000327_02113cztM0_level2_quad_clean.evt
Size (bytes)31,129,9205,103,360
Size29.7 MB 4.9 MB
Events in quadrant A226,94227,528
Events in quadrant B224,11728,014
Events in quadrant C223,94326,434
Events in quadrant D226,79225,846

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011090
B011010
C011040
D011290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A55100.000000%
B55100.000000%
C55100.000000%
D55100.000000%

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 551 551 0 0 0.00% 0.00%
B 551 551 0 0 0.00% 0.00%
C 551 551 0 0 0.00% 0.00%
D 551 551 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 0 199 8953 679.3 56 55 13.1
A 10 2 256 15.34 56 55 13.1
A 3 1 253 15.12 56 55 13.1
B 0 234 194 10.79 58 57 12.7
B 0 198 170 8.9 58 57 12.7
B 4 202 169 8.82 58 57 12.7
C 10 65 1358 90.39 56 56 14.4
C 14 48 381 22.56 56 56 14.4
C 5 234 371 21.87 56 56 14.4
D 14 34 12929 914.46 54 53 14.1
D 5 233 3813 267.04 54 53 14.1
D 10 170 1185 80.39 54 53 14.1

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
Veto Counter