ASTROSAT CZTI

Data Quality Report

Orbit 10561

Creation date: 2024-06-27T16:00:50.615305
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/AS1G07_004T01_9000001532_10561cztM0_level2.evt modeM0/AS1G07_004T01_9000001532_10561cztM0_level2_quad_clean.evt
Size (bytes)553,458,24090,731,520
Size527.8 MB 86.5 MB
Events in quadrant A3,511,110567,021
Events in quadrant B5,150,264557,978
Events in quadrant C3,311,975580,448
Events in quadrant D4,309,512550,476

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151043
B0201562
C0146202
D0174972

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7069811.145848%
B70696609.336540%
C7069721.018532%
D7069871.230726%

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 8969 7071 0 0 0.00% 0.00%
B 8969 7071 367 367 4.09% 5.19%
C 8969 7071 7 7 0.08% 0.10%
D 8969 7071 11 11 0.12% 0.16%

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 13 251 108450 616.55 857 838 174.5
A 1 162 52628 296.72 857 838 174.5
A 1 178 16803 91.47 857 838 174.5
B 4 239 1699975 10638.38 839 819 159.7
B 11 51 62989 389.25 839 819 159.7
B 0 219 62500 386.18 839 819 159.7
C 14 234 24618 121.51 842 847 195.6
C 13 61 6295 27.85 842 847 195.6
C 14 67 3200 12.03 842 847 195.6
D 8 195 512068 2565.08 834 811 199.3
D 2 16 244766 1223.97 834 811 199.3
D 1 52 201034 1004.56 834 811 199.3

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