ASTROSAT CZTI

Data Quality Report

Orbit 45044

Creation date: 2024-06-27T23:09:20.266906
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/AS1A13_020T01_9000006040_45044cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45044cztM0_level2_quad_clean.evt
Size (bytes)727,632,000112,907,520
Size693.9 MB 107.7 MB
Events in quadrant A6,040,335800,380
Events in quadrant B4,703,358806,655
Events in quadrant C4,006,745785,874
Events in quadrant D11,603,103503,131

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0234520
B0190820
C0173240
D0398100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75051522.025316%
B75063044.050093%
C75061812.411404%
D7506251033.439915%

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 7505 7505 18 18 0.24% 0.24%
B 7506 7506 127 127 1.69% 1.69%
C 7506 7506 119 119 1.59% 1.59%
D 7506 7506 2080 2080 27.71% 27.71%

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 10 83 2617327 14708.39 846 826 177.9
A 13 248 75041 417.19 846 826 177.9
A 0 243 36392 199.93 846 826 177.9
B 0 189 485821 2914.77 836 811 166.4
B 12 48 249554 1494.87 836 811 166.4
B 0 190 141590 846.04 836 811 166.4
C 14 254 551434 2856.77 821 827 192.7
C 1 3 77116 395.82 821 827 192.7
C 12 2 76573 393.0 821 827 192.7
D 13 174 3993509 21848.94 723 700 182.7
D 1 52 1533434 8387.23 723 700 182.7
D 11 241 1215144 6645.53 723 700 182.7

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