ASTROSAT CZTI

Data Quality Report

Orbit 23596

Creation date: 2024-06-27T18:56:36.836434
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/AS1A07_054T01_9000003486_23596cztM0_level2.evt modeM0/AS1A07_054T01_9000003486_23596cztM0_level2_quad_clean.evt
Size (bytes)446,273,280127,465,920
Size425.6 MB 121.6 MB
Events in quadrant A3,034,763872,586
Events in quadrant B3,473,268878,756
Events in quadrant C3,102,844834,496
Events in quadrant D3,458,690817,508

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133121
B0145211
C0135111
D0144421

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6553921.403937%
B65541642.502289%
C65541271.937748%
D6554891.357949%

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 7508 6553 0 0 0.00% 0.00%
B 7509 6554 36 36 0.48% 0.55%
C 7509 6554 13 13 0.17% 0.20%
D 7509 6554 18 18 0.24% 0.27%

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 12206 73.16 786 770 156.3
A 3 137 6881 39.1 786 770 156.3
A 0 226 6750 38.26 786 770 156.3
B 0 189 228819 1536.01 779 759 148.5
B 3 64 130666 874.94 779 759 148.5
B 0 230 31916 209.85 779 759 148.5
C 14 238 120698 697.56 745 749 172.0
C 0 10 59021 338.88 745 749 172.0
C 3 233 10093 54.34 745 749 172.0
D 7 223 208258 1142.02 755 732 181.7
D 12 233 184863 1013.28 755 732 181.7
D 1 52 174319 955.25 755 732 181.7

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