ASTROSAT CZTI

Data Quality Report

Orbit 23163

Creation date: 2024-06-27T18:50:44.243658
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/AS1A08_009T01_9000003422_23163cztM0_level2.evt modeM0/AS1A08_009T01_9000003422_23163cztM0_level2_quad_clean.evt
Size (bytes)566,127,360114,318,720
Size539.9 MB 109.0 MB
Events in quadrant A3,632,402732,538
Events in quadrant B3,761,386752,562
Events in quadrant C4,146,666722,950
Events in quadrant D5,071,486707,954

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162452
B0164772
C0174222
D0208902

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7860310.394402%
B7860650.826972%
C78601982.519084%
D78615186.589492%

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 9235 7862 0 0 0.00% 0.00%
B 9235 7862 0 0 0.00% 0.00%
C 9235 7862 3 3 0.03% 0.04%
D 9236 7863 417 417 4.51% 5.30%

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 11449 55.35 941 920 190.2
A 3 137 8365 39.14 941 920 190.2
A 0 226 7912 36.75 941 920 190.2
B 0 190 37931 202.95 947 920 182.4
B 12 111 21989 115.53 947 920 182.4
B 11 111 19320 100.9 947 920 182.4
C 0 10 269394 1265.31 909 914 212.2
C 14 238 142262 666.15 909 914 212.2
C 8 208 92539 431.82 909 914 212.2
D 1 52 1295437 5991.58 889 862 216.1
D 12 233 169056 778.44 889 862 216.1
D 13 153 95705 438.95 889 862 216.1

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