ASTROSAT CZTI

Data Quality Report

Orbit 09246

Creation date: 2024-06-27T15:43:21.307852
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/AS1G07_003T01_9000001290_09246cztM0_level2.evt modeM0/AS1G07_003T01_9000001290_09246cztM0_level2_quad_clean.evt
Size (bytes)443,989,44087,456,960
Size423.4 MB 83.4 MB
Events in quadrant A3,776,121560,028
Events in quadrant B3,268,365564,757
Events in quadrant C2,940,484545,660
Events in quadrant D3,027,190532,482

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015552177
B014021113
C01324393
D01361097

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01302
B01300
C01302
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6378630.987770%
B6387470.735870%
C6394200.312793%
D6394210.328433%

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 7588 6434 27 27 0.36% 0.42%
B 7588 6439 15 15 0.20% 0.23%
C 7588 6439 8 8 0.11% 0.12%
D 7588 6437 8 8 0.11% 0.12%

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 8 5 677548 4275.04 777 762 158.3
A 15 174 67768 423.26 777 762 158.3
A 13 251 27553 169.23 777 762 158.3
B 0 214 77071 505.3 780 762 151.0
B 4 173 53172 347.05 780 762 151.0
B 4 48 41049 266.77 780 762 151.0
C 14 234 40031 228.29 742 744 172.1
C 13 61 5709 28.85 742 744 172.1
C 8 222 3799 17.75 742 744 172.1
D 7 71 83641 428.83 746 724 193.4
D 12 233 44044 224.04 746 724 193.4
D 2 234 38770 196.77 746 724 193.4

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