ASTROSAT CZTI

Data Quality Report

Orbit 23113

Creation date: 2024-06-27T18:50:04.734746
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_008T01_9000003414_23113cztM0_level2.evt modeM0/AS1A08_008T01_9000003414_23113cztM0_level2_quad_clean.evt
Size (bytes)677,413,440144,014,400
Size646.0 MB 137.3 MB
Events in quadrant A7,626,758921,275
Events in quadrant B3,799,9461,033,137
Events in quadrant C3,844,031966,927
Events in quadrant D4,746,020927,188

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0278062
B0162302
C0161282
D0191742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7363139418.932500%
B7363941.276654%
C73631431.942143%
D73634395.962244%

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 9488 7363 1065 1065 11.22% 14.46%
B 9488 7364 0 0 0.00% 0.00%
C 9488 7363 6 6 0.06% 0.08%
D 9488 7365 208 208 2.19% 2.82%

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 6 16 4292610 24966.93 864 848 171.9
A 13 254 10535 56.35 864 848 171.9
A 0 226 7538 38.92 864 848 171.9
B 0 190 80030 457.85 921 900 172.8
B 0 189 57223 325.89 921 900 172.8
B 12 111 20406 112.86 921 900 172.8
C 0 207 202840 1000.37 875 879 201.9
C 14 238 138810 683.21 875 879 201.9
C 2 16 62081 303.15 875 879 201.9
D 1 52 1082833 5122.6 868 843 211.2
D 1 239 204492 964.16 868 843 211.2
D 12 233 45431 211.1 868 843 211.2

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