ASTROSAT CZTI

Data Quality Report

Orbit 14702

Creation date: 2024-06-27T16:58:40.256595
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_057T09_9000002174_14702cztM0_level2.evt modeM0/AS1G08_057T09_9000002174_14702cztM0_level2_quad_clean.evt
Size (bytes)521,046,72091,846,080
Size496.9 MB 87.6 MB
Events in quadrant A3,323,143597,978
Events in quadrant B3,393,955585,983
Events in quadrant C5,437,938566,643
Events in quadrant D3,182,358575,436

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140323
B0142802
C0209632
D0137002

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6526650.996016%
B6526781.195219%
C6526891.363776%
D6526490.750843%

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 7682 6527 0 0 0.00% 0.00%
B 7682 6527 9 9 0.12% 0.14%
C 7682 6527 0 0 0.00% 0.00%
D 7682 6527 0 0 0.00% 0.00%

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 9 143 13671 75.81 851 835 169.3
A 12 189 12612 69.55 851 835 169.3
A 0 226 7659 40.3 851 835 169.3
B 0 229 31445 193.78 836 817 158.1
B 15 201 25696 157.4 836 817 158.1
B 0 189 18875 114.25 836 817 158.1
C 3 233 2263706 12171.1 811 816 185.9
C 3 234 10102 49.95 811 816 185.9
C 13 61 5738 26.47 811 816 185.9
D 2 234 22868 113.74 822 801 194.0
D 15 145 17114 84.08 822 801 194.0
D 13 172 12483 60.21 822 801 194.0

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