ASTROSAT CZTI

Data Quality Report

Orbit 10363

Creation date: 2024-06-27T15:58:23.823033
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/AS1G07_048T01_9000001494_10363cztM0_level2.evt modeM0/AS1G07_048T01_9000001494_10363cztM0_level2_quad_clean.evt
Size (bytes)533,975,04067,636,800
Size509.2 MB 64.5 MB
Events in quadrant A3,181,968415,457
Events in quadrant B3,541,203418,062
Events in quadrant C3,095,149404,087
Events in quadrant D5,925,147369,324

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132143
B0143372
C0131622
D0220102

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6317771.218933%
B63171682.659490%
C6317651.028969%
D63172704.274181%

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 7612 6318 0 0 0.00% 0.00%
B 7612 6317 39 39 0.51% 0.62%
C 7612 6318 1 1 0.01% 0.02%
D 7612 6318 214 214 2.81% 3.39%

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 3 1 9709 53.82 821 807 165.4
A 0 226 7633 41.27 821 807 165.4
A 12 194 6618 35.13 821 807 165.4
B 4 239 192428 1249.1 817 800 153.4
B 0 214 58961 379.11 817 800 153.4
B 11 51 57667 370.68 817 800 153.4
C 14 234 31452 171.4 785 790 178.9
C 13 61 5886 28.49 785 790 178.9
C 12 4 2592 10.07 785 790 178.9
D 1 20 2270924 12384.64 769 748 183.3
D 8 195 248949 1354.03 769 748 183.3
D 1 52 226993 1234.25 769 748 183.3

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