ASTROSAT CZTI

Data Quality Report

Orbit 06098

Creation date: 2024-06-27T15:02:44.431118
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/AS1G06_033T01_9000000792_06098cztM0_level2.evt modeM0/AS1G06_033T01_9000000792_06098cztM0_level2_quad_clean.evt
Size (bytes)522,550,08072,714,240
Size498.3 MB 69.3 MB
Events in quadrant A4,377,540418,817
Events in quadrant B3,861,860426,596
Events in quadrant C3,436,876423,576
Events in quadrant D3,637,929408,742

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01788510
B01637811
C0155582
D01605710

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75312172.881423%
B75302313.067729%
C7534761.008760%
D7530901.195219%

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 7535 7535 5 5 0.07% 0.07%
B 7535 7535 16 16 0.21% 0.21%
C 7535 7535 0 0 0.00% 0.00%
D 7535 7535 11 11 0.15% 0.15%

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 8 15 960485 5192.9 887 867 184.8
A 0 226 8585 41.77 887 867 184.8
A 12 194 8537 41.51 887 867 184.8
B 10 245 96515 548.48 902 878 174.4
B 4 81 74043 419.6 902 878 174.4
B 15 204 48356 272.29 902 878 174.4
C 8 128 16021 74.18 870 874 204.2
C 8 112 8775 38.69 870 874 204.2
C 1 16 7757 33.71 870 874 204.2
D 1 239 67192 306.27 868 840 216.6
D 2 206 57018 259.31 868 840 216.6
D 14 173 52486 238.39 868 840 216.6

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