ASTROSAT CZTI

Data Quality Report

Orbit 19045

Creation date: 2024-06-27T17:58:26.416236
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/AS1A05_046T01_9000002834_19045cztM0_level2.evt modeM0/AS1A05_046T01_9000002834_19045cztM0_level2_quad_clean.evt
Size (bytes)506,773,44093,718,080
Size483.3 MB 89.4 MB
Events in quadrant A3,414,965590,148
Events in quadrant B3,816,407605,688
Events in quadrant C3,588,407586,514
Events in quadrant D4,051,543566,833

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146112
B0159842
C0149842
D0168392

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7020550.783476%
B70211251.780373%
C7021841.196411%
D7021751.068224%

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 9065 7022 0 0 0.00% 0.00%
B 9066 7023 13 13 0.14% 0.19%
C 9066 7023 0 0 0.00% 0.00%
D 9066 7023 12 12 0.13% 0.17%

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 6 9992 50.76 884 864 179.8
A 13 254 9174 46.21 884 864 179.8
A 0 226 7768 38.4 884 864 179.8
B 3 112 197343 1149.37 888 867 170.9
B 0 189 50566 290.74 888 867 170.9
B 0 197 32735 186.43 888 867 170.9
C 14 238 131975 650.63 855 863 201.5
C 3 233 89346 439.09 855 863 201.5
C 9 15 35635 172.55 855 863 201.5
D 7 238 750305 3557.88 860 836 210.7
D 2 234 29656 136.81 860 836 210.7
D 7 38 14612 65.4 860 836 210.7

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