ASTROSAT CZTI

Data Quality Report

Orbit 33543

Creation date: 2024-06-27T20:49:58.143395
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_060T01_9000004808_33543cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33543cztM0_level2_quad_clean.evt
Size (bytes)483,897,60066,533,760
Size461.5 MB 63.5 MB
Events in quadrant A2,781,007407,451
Events in quadrant B3,163,334402,661
Events in quadrant C3,316,797403,878
Events in quadrant D4,987,127381,787

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121423
B0130672
C0132652
D0187552

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A598890.150301%
B59881091.820307%
C59881091.820307%
D59881742.905812%

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 9334 5990 0 0 0.00% 0.00%
B 9334 5990 87 87 0.93% 1.45%
C 9334 5990 89 89 0.95% 1.49%
D 9334 5990 157 157 1.68% 2.62%

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 15 169 51971 359.11 704 689 142.8
A 13 254 10344 67.61 704 689 142.8
A 3 137 7057 44.59 704 689 142.8
B 5 172 262928 1947.83 698 679 134.6
B 5 255 70386 517.74 698 679 134.6
B 4 187 17626 125.87 698 679 134.6
C 15 214 259140 1641.43 682 689 157.5
C 0 10 243916 1544.74 682 689 157.5
C 14 254 90875 572.77 682 689 157.5
D 8 195 1771953 10610.39 679 660 166.9
D 13 249 165394 986.79 679 660 166.9
D 2 250 142429 849.22 679 660 166.9

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