ASTROSAT CZTI

Data Quality Report

Orbit 07017

Creation date: 2024-06-27T15:14:29.211949
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/AS1G06_026T01_9000000962_07017cztM0_level2.evt modeM0/AS1G06_026T01_9000000962_07017cztM0_level2_quad_clean.evt
Size (bytes)412,295,04094,501,440
Size393.2 MB 90.1 MB
Events in quadrant A2,957,156604,731
Events in quadrant B3,098,665617,844
Events in quadrant C2,954,137610,628
Events in quadrant D3,038,844580,127

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130863
B0133522
C0131402
D0133782

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6432130.202114%
B6432200.310945%
C6432150.233209%
D6432190.295398%

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 7577 6433 0 0 0.00% 0.00%
B 7577 6433 1 1 0.01% 0.02%
C 7577 6433 0 0 0.00% 0.00%
D 7577 6433 8 8 0.11% 0.12%

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 14 15994 98.87 760 745 154.2
A 13 248 13402 82.06 760 745 154.2
A 0 226 7433 43.36 760 745 154.2
B 0 214 59720 404.42 770 750 145.8
B 0 199 22480 149.03 770 750 145.8
B 12 111 14089 91.48 770 750 145.8
C 12 4 8776 46.01 754 759 174.2
C 13 61 5832 29.12 754 759 174.2
C 14 67 2399 9.41 754 759 174.2
D 8 195 110450 600.05 748 724 182.9
D 2 33 42187 226.74 748 724 182.9
D 2 14 34430 184.32 748 724 182.9

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