ASTROSAT CZTI

Data Quality Report

Orbit 30836

Creation date: 2024-06-27T20:20:22.171059
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/AS1C06_006T01_9000004456_30836cztM0_level2.evt modeM0/AS1C06_006T01_9000004456_30836cztM0_level2_quad_clean.evt
Size (bytes)321,275,52039,922,560
Size306.4 MB 38.1 MB
Events in quadrant A1,968,826240,280
Events in quadrant B3,144,879240,944
Events in quadrant C2,279,619224,411
Events in quadrant D2,071,543228,936

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A082800
B0120190
C092330
D085460

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0780
C0780
D0780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A38743448.879711%
B387444511.486835%
C387451013.164688%
D38742656.840475%

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 3874 3874 0 0 0.00% 0.00%
B 3874 3874 6 6 0.15% 0.15%
C 3874 3874 0 0 0.00% 0.00%
D 3874 3874 6 6 0.15% 0.15%

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 13 254 6876 60.68 509 497 105.1
A 3 137 5412 46.75 509 497 105.1
A 0 226 4200 35.22 509 497 105.1
B 6 159 1083314 10948.89 497 482 98.9
B 5 255 42888 428.78 497 482 98.9
B 0 230 30805 306.61 497 482 98.9
C 3 233 164037 1438.93 477 478 113.7
C 14 238 148881 1305.59 477 478 113.7
C 14 254 94936 831.01 477 478 113.7
D 8 195 90198 757.56 492 476 118.4
D 1 52 64830 543.37 492 476 118.4
D 2 250 18397 151.31 492 476 118.4

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