ASTROSAT CZTI

Data Quality Report

Orbit 17153

Creation date: 2024-06-27T17:32:45.975386
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_194T03_9000002544_17153cztM0_level2.evt modeM0/AS1A05_194T03_9000002544_17153cztM0_level2_quad_clean.evt
Size (bytes)371,554,56054,048,960
Size354.3 MB 51.5 MB
Events in quadrant A2,126,907341,263
Events in quadrant B2,188,533352,809
Events in quadrant C4,307,411318,703
Events in quadrant D2,326,008309,486

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A091021
B092811
C0160131
D0100091

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A446270.156880%
B446250.112057%
C44621623.630659%
D44621423.182429%

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 4462 4462 0 0 0.00% 0.00%
B 4462 4462 0 0 0.00% 0.00%
C 4462 4462 12 12 0.27% 0.27%
D 4462 4462 130 130 2.91% 2.91%

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 12 189 37939 343.86 543 532 108.8
A 0 226 4752 38.79 543 532 108.8
A 12 194 3924 31.18 543 532 108.8
B 0 197 15063 140.29 551 538 103.5
B 12 111 11984 110.55 551 538 103.5
B 11 111 10185 93.18 551 538 103.5
C 3 233 2195013 18026.94 520 526 121.7
C 14 238 81322 663.71 520 526 121.7
C 13 61 3621 25.42 520 526 121.7
D 15 0 286371 2277.8 514 500 125.5
D 7 38 59377 469.13 514 500 125.5
D 2 152 17468 135.2 514 500 125.5

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