ASTROSAT CZTI

Data Quality Report

Orbit 37599

Creation date: 2024-06-27T21:42:01.849284
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/AS1T05_053T01_9000005338_37599cztM0_level2.evt modeM0/AS1T05_053T01_9000005338_37599cztM0_level2_quad_clean.evt
Size (bytes)457,084,80084,265,920
Size435.9 MB 80.4 MB
Events in quadrant A3,000,900538,423
Events in quadrant B3,552,434536,274
Events in quadrant C2,935,449547,254
Events in quadrant D3,949,417513,772

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124433
B0143832
C0122652
D0156772

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A595970.117469%
B59591903.188454%
C5959150.251720%
D59593185.336466%

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 7271 5959 3 3 0.04% 0.05%
B 7271 5958 159 159 2.19% 2.67%
C 7271 5959 8 8 0.11% 0.13%
D 7271 5958 303 303 4.17% 5.09%

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 10 83 336113 2448.64 675 661 137.0
A 13 6 17748 124.73 675 661 137.0
A 9 143 16686 116.97 675 661 137.0
B 5 172 446221 3495.9 664 645 127.5
B 4 81 140169 1094.68 664 645 127.5
B 0 213 85732 667.58 664 645 127.5
C 15 214 259644 1676.14 659 662 154.5
C 0 10 72393 464.25 659 662 154.5
C 14 254 8491 50.67 659 662 154.5
D 2 250 660311 4188.01 641 620 157.5
D 2 249 160932 1017.73 641 620 157.5
D 1 47 133797 845.47 641 620 157.5

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