ASTROSAT CZTI

Data Quality Report

Orbit 28100

Creation date: 2024-06-27T19:48:04.101661
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_057T05_9000004060_28100cztM0_level2.evt modeM0/AS1A10_057T05_9000004060_28100cztM0_level2_quad_clean.evt
Size (bytes)587,341,44081,181,440
Size560.1 MB 77.4 MB
Events in quadrant A3,969,934498,443
Events in quadrant B3,802,799488,967
Events in quadrant C4,014,814468,999
Events in quadrant D5,483,330471,605

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165100
B0160060
C0165880
D0217230

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76241672.190451%
B76251762.308197%
C76242483.252886%
D76243224.223505%

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 8464 7626 0 0 0.00% 0.00%
B 8465 7627 0 0 0.00% 0.00%
C 8464 7626 20 20 0.24% 0.26%
D 8464 7626 157 157 1.85% 2.06%

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 5 98 191644 974.48 971 950 195.7
A 0 13 15030 71.95 971 950 195.7
A 14 238 12847 60.8 971 950 195.7
B 12 111 22922 118.5 952 927 185.6
B 4 52 21455 110.59 952 927 185.6
B 11 111 21087 108.61 952 927 185.6
C 15 208 213987 979.59 918 920 217.5
C 14 238 148030 676.35 918 920 217.5
C 3 233 44104 198.54 918 920 217.5
D 8 195 1092050 4896.24 932 905 222.9
D 2 250 507579 2273.57 932 905 222.9
D 12 1 115422 513.87 932 905 222.9

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