ASTROSAT CZTI

Data Quality Report

Orbit 45233

Creation date: 2024-06-27T23:10:59.158647
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/AS1A13_049T07_9000006056_45233cztM0_level2.fits modeM0/AS1A13_049T07_9000006056_45233cztM0_level2_quad_clean.evt
Size (bytes)335,669,76063,149,760
Size320.1 MB 60.2 MB
Events in quadrant A3,500,909422,766
Events in quadrant B2,203,364436,175
Events in quadrant C2,087,225423,832
Events in quadrant D4,317,380342,461

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013484352
B09672296
C09363262
D016378802

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0831
B0840
C0831
D0840

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A40811032.523891%
B4074892.184585%
C4062551.354013%
D401558314.520548%

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 4213 4189 42 42 1.00% 1.00%
B 4213 4163 28 28 0.66% 0.67%
C 4213 4160 44 44 1.04% 1.06%
D 4214 4144 543 543 12.89% 13.10%

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 10 83 1487734 15370.56 459 448 96.8
A 13 248 179748 1853.0 459 448 96.8
A 15 174 49600 507.97 459 448 96.8
B 3 112 151615 1656.37 455 440 91.3
B 5 32 134622 1470.19 455 440 91.3
B 5 172 25333 272.74 455 440 91.3
C 14 254 197938 1846.36 446 447 107.0
C 3 9 53193 493.13 446 447 107.0
C 12 2 38316 354.04 446 447 107.0
D 13 249 1002704 9269.17 423 409 108.1
D 4 232 360150 3326.86 423 409 108.1
D 5 222 255454 2358.64 423 409 108.1

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