ASTROSAT CZTI

Data Quality Report

Orbit 23066

Creation date: 2024-06-27T18:49:18.720190
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/AS1A07_049T01_9000003408_23066cztM0_level2.evt modeM0/AS1A07_049T01_9000003408_23066cztM0_level2_quad_clean.evt
Size (bytes)1,012,924,800156,116,160
Size966.0 MB 148.9 MB
Events in quadrant A5,880,0461,004,336
Events in quadrant B6,341,9301,002,761
Events in quadrant C5,921,915967,611
Events in quadrant D11,696,577897,530

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0257622
B0270862
C0257542
D0431142

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02520
B02520
C02520
D02520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A123681631.317917%
B123692892.336486%
C123691961.584607%
D12369140211.334789%

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 13628 12370 32 32 0.23% 0.26%
B 13629 12371 102 102 0.75% 0.82%
C 13629 12371 12 12 0.09% 0.10%
D 13629 12371 1253 1253 9.19% 10.13%

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 6 16 212636 714.17 1470 1434 295.7
A 13 254 17288 53.61 1470 1434 295.7
A 3 137 13573 41.05 1470 1434 295.7
B 3 64 470051 1689.62 1450 1415 277.4
B 4 216 81846 289.99 1450 1415 277.4
B 4 173 55644 195.52 1450 1415 277.4
C 14 238 221596 671.45 1407 1412 327.9
C 0 207 105618 317.78 1407 1412 327.9
C 0 10 50632 150.1 1407 1412 327.9
D 1 239 3902229 11470.74 1390 1349 340.1
D 1 52 2155192 6333.48 1390 1349 340.1
D 2 136 149230 434.85 1390 1349 340.1

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