ASTROSAT CZTI

Data Quality Report

Orbit 29425

Creation date: 2024-06-27T20:04:00.687798
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/AS1A10_102T05_9000004232_29425cztM0_level2.evt modeM0/AS1A10_102T05_9000004232_29425cztM0_level2_quad_clean.evt
Size (bytes)846,622,080102,620,160
Size807.4 MB 97.9 MB
Events in quadrant A3,275,962696,061
Events in quadrant B3,580,644721,863
Events in quadrant C12,795,958570,631
Events in quadrant D5,536,124652,188

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139512
B0148752
C0426062
D0209932

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6693180.268938%
B6693891.329747%
C6693381757.029733%
D66935588.337069%

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 7888 6694 0 0 0.00% 0.00%
B 7888 6694 25 25 0.32% 0.37%
C 7888 6693 2770 2770 35.12% 41.39%
D 7888 6694 345 345 4.37% 5.15%

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 13 254 11653 63.88 849 833 169.4
A 3 137 7841 41.37 849 833 169.4
A 0 226 7164 37.38 849 833 169.4
B 10 245 184415 1147.08 848 826 160.0
B 0 190 19521 116.81 848 826 160.0
B 12 111 19485 116.58 848 826 160.0
C 3 233 9984148 62606.84 690 695 159.5
C 14 238 107951 672.61 690 695 159.5
C 2 114 13321 79.18 690 695 159.5
D 1 52 1476927 7904.55 786 767 186.7
D 8 195 653877 3497.28 786 767 186.7
D 2 120 148117 789.03 786 767 186.7

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