ASTROSAT CZTI

Data Quality Report

Orbit 28067

Creation date: 2024-06-27T19:47:40.353436
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_057T02_9000004054_28067cztM0_level2.evt modeM0/AS1A10_057T02_9000004054_28067cztM0_level2_quad_clean.evt
Size (bytes)856,033,92082,612,800
Size816.4 MB 78.8 MB
Events in quadrant A3,733,653575,282
Events in quadrant B9,464,135442,826
Events in quadrant C6,436,711516,229
Events in quadrant D5,860,299520,059

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152110
B0324630
C0237980
D0218870

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63921011.580100%
B6393265641.545440%
C63935989.353981%
D63935268.227749%

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 7692 6392 1 1 0.01% 0.02%
B 7693 6393 2152 2152 27.97% 33.66%
C 7693 6393 179 179 2.33% 2.80%
D 7693 6393 421 421 5.47% 6.59%

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 0 13 207982 1159.74 909 896 178.6
A 12 96 13604 71.17 909 896 178.6
A 13 254 10680 54.79 909 896 178.6
B 10 245 6520994 47415.02 738 722 137.5
B 15 32 23837 168.09 738 722 137.5
B 12 111 15552 107.84 738 722 137.5
C 3 233 3067811 16194.95 829 835 189.4
C 14 238 136095 714.23 829 835 189.4
C 13 61 5632 25.33 829 835 189.4
D 1 52 1069364 5405.55 850 830 197.7
D 8 195 718409 3630.13 850 830 197.7
D 7 238 485727 2453.02 850 830 197.7

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