ASTROSAT CZTI

Data Quality Report

Orbit 12102

Creation date: 2024-06-27T16:22:26.033396
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_12102cztM0_level2.evt modeM0/AS1G08_065T01_9000001796_12102cztM0_level2_quad_clean.evt
Size (bytes)501,356,160103,544,640
Size478.1 MB 98.7 MB
Events in quadrant A3,772,798678,550
Events in quadrant B3,668,206676,669
Events in quadrant C3,136,775678,334
Events in quadrant D4,159,918644,313

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155643
B0152922
C0136642
D0168072

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65662093.183064%
B65661642.497716%
C6566570.868108%
D65662373.609504%

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 7667 6568 77 77 1.00% 1.17%
B 7667 6567 37 37 0.48% 0.56%
C 7667 6568 0 0 0.00% 0.00%
D 7667 6568 99 99 1.29% 1.51%

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 13 248 198966 1219.59 809 793 162.5
A 14 63 185577 1137.19 809 793 162.5
A 1 162 121681 743.97 809 793 162.5
B 4 239 344520 2266.16 810 793 151.7
B 15 204 58204 378.51 810 793 151.7
B 11 51 41451 268.05 810 793 151.7
C 14 234 12044 60.91 800 803 184.6
C 13 61 5950 27.89 800 803 184.6
C 14 67 5142 23.51 800 803 184.6
D 1 52 454568 2424.28 787 765 187.2
D 8 195 184711 982.67 787 765 187.2
D 14 34 120470 639.48 787 765 187.2

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