ASTROSAT CZTI

Data Quality Report

Orbit 06092

Creation date: 2024-06-27T15:02:39.408766
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_033T01_9000000792_06092cztM0_level2.evt modeM0/AS1G06_033T01_9000000792_06092cztM0_level2_quad_clean.evt
Size (bytes)480,510,72072,103,680
Size458.3 MB 68.8 MB
Events in quadrant A3,476,674455,032
Events in quadrant B3,000,117476,405
Events in quadrant C2,719,979463,097
Events in quadrant D4,969,105390,418

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139994
B0125051
C0118983
D0186641

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56891723.023378%
B5690430.755712%
C5689130.228511%
D569073612.934974%

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 6980 5691 126 126 1.81% 2.21%
B 6980 5691 14 14 0.20% 0.25%
C 6980 5691 4 4 0.06% 0.07%
D 6980 5691 715 715 10.24% 12.56%

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 8 15 782048 5650.61 672 659 138.3
A 4 2 78972 566.32 672 659 138.3
A 14 111 22732 159.62 672 659 138.3
B 3 64 137340 1035.49 691 676 132.0
B 15 204 64727 485.31 691 676 132.0
B 0 245 43503 324.49 691 676 132.0
C 9 16 90447 579.01 664 670 155.1
C 1 16 33002 208.52 664 670 155.1
C 4 222 5586 31.71 664 670 155.1
D 11 241 2453953 15685.24 630 610 156.4
D 2 33 33021 207.21 630 610 156.4
D 8 195 26028 162.5 630 610 156.4

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