ASTROSAT CZTI

Data Quality Report

Orbit 27332

Creation date: 2024-06-27T19:38:58.902572
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/AS1T03_255T01_9000003922_27332cztM0_level2.evt modeM0/AS1T03_255T01_9000003922_27332cztM0_level2_quad_clean.evt
Size (bytes)547,657,92097,790,400
Size522.3 MB 93.3 MB
Events in quadrant A3,472,766641,883
Events in quadrant B4,677,176633,705
Events in quadrant C3,719,278605,215
Events in quadrant D4,244,281595,442

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147540
B0182620
C0156340
D0170150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6963400.574465%
B69633414.897314%
C69631452.082436%
D69631512.168605%

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 7503 6964 5 5 0.07% 0.07%
B 7503 6964 166 166 2.21% 2.38%
C 7503 6964 39 39 0.52% 0.56%
D 7503 6964 119 119 1.59% 1.71%

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 14 235 58748 331.21 870 851 174.8
A 12 189 21422 117.68 870 851 174.8
A 13 254 12606 67.25 870 851 174.8
B 3 64 921108 5597.17 856 835 164.4
B 5 172 169942 1028.52 856 835 164.4
B 7 205 144753 875.32 856 835 164.4
C 8 208 302921 1569.16 819 824 192.5
C 14 238 130906 675.68 819 824 192.5
C 2 16 76869 394.99 819 824 192.5
D 2 250 403629 1873.77 825 807 215.0
D 12 233 369146 1713.37 825 807 215.0
D 1 52 227911 1056.4 825 807 215.0

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