ASTROSAT CZTI

Data Quality Report

Orbit 16433

Creation date: 2024-06-27T17:22:36.847549
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_069T03_9000002426_16433cztM0_level2.evt modeM0/AS1A05_069T03_9000002426_16433cztM0_level2_quad_clean.evt
Size (bytes)538,024,32088,485,120
Size513.1 MB 84.4 MB
Events in quadrant A3,858,469541,521
Events in quadrant B4,208,957549,767
Events in quadrant C3,876,917525,863
Events in quadrant D3,812,669513,060

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166843
B0175052
C0165012
D0168852

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79013874.898114%
B79013904.936084%
C79013714.695608%
D79013123.948867%

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 8297 7902 3 3 0.04% 0.04%
B 8297 7902 4 4 0.05% 0.05%
C 8297 7902 0 0 0.00% 0.00%
D 8297 7902 15 15 0.18% 0.19%

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 15 174 90853 458.89 968 943 195.9
A 15 223 30525 150.98 968 943 195.9
A 15 239 12967 61.37 968 943 195.9
B 15 35 211152 1116.72 970 942 188.2
B 0 244 56040 292.7 970 942 188.2
B 0 198 44420 230.97 970 942 188.2
C 14 238 142143 649.11 931 937 217.5
C 7 247 64895 294.01 931 937 217.5
C 3 233 26669 118.29 931 937 217.5
D 5 222 183636 787.32 946 916 232.1
D 2 234 30863 129.04 946 916 232.1
D 10 70 21027 86.66 946 916 232.1

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