ASTROSAT CZTI

Data Quality Report

Orbit 33193

Creation date: 2024-06-27T20:45:55.119560
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/AS1A11_080T02_9000004768_33193cztM0_level2.evt modeM0/AS1A11_080T02_9000004768_33193cztM0_level2_quad_clean.evt
Size (bytes)644,832,00050,454,720
Size615.0 MB 48.1 MB
Events in quadrant A2,602,774300,190
Events in quadrant B7,302,722282,149
Events in quadrant C4,639,020291,972
Events in quadrant D4,631,568287,276

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106632
B0252271
C0171241
D0175901

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A522180.153227%
B5221180234.514461%
C522156610.840835%
D52211603.064547%

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 7344 5222 0 0 0.00% 0.00%
B 7344 5222 1433 1433 19.51% 27.44%
C 7343 5221 479 479 6.52% 9.17%
D 7344 5222 119 119 1.62% 2.28%

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 6 10713 75.37 669 656 133.4
A 13 254 9975 69.84 669 656 133.4
A 3 137 5833 38.8 669 656 133.4
B 5 31 2083680 19266.93 581 568 108.1
B 5 15 1158850 10713.08 581 568 108.1
B 5 14 928880 8586.06 581 568 108.1
C 9 187 1203695 8406.08 627 633 143.1
C 0 10 439673 3067.68 627 633 143.1
C 1 23 264564 1844.15 627 633 143.1
D 8 195 1037430 6316.04 648 636 164.2
D 12 218 362512 2204.51 648 636 164.2
D 10 203 208437 1265.9 648 636 164.2

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