ASTROSAT CZTI

Data Quality Report

Orbit 22409

Creation date: 2024-06-27T18:40:37.281957
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/AS1T03_156T01_9000003312_22409cztM0_level2.evt modeM0/AS1T03_156T01_9000003312_22409cztM0_level2_quad_clean.evt
Size (bytes)442,601,28086,178,240
Size422.1 MB 82.2 MB
Events in quadrant A3,096,539546,702
Events in quadrant B3,244,038557,421
Events in quadrant C3,170,866530,768
Events in quadrant D3,443,383513,886

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135022
B0137672
C0135932
D0146732

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6610310.468986%
B6610480.726172%
C6610650.983359%
D6610430.650530%

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 7650 6612 0 0 0.00% 0.00%
B 7650 6612 3 3 0.04% 0.05%
C 7650 6612 0 0 0.00% 0.00%
D 7650 6612 21 21 0.27% 0.32%

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 10649 61.09 802 786 161.5
A 3 137 6864 37.64 802 786 161.5
A 0 226 6731 36.82 802 786 161.5
B 0 190 43559 281.72 807 788 151.8
B 12 111 18278 115.2 807 788 151.8
B 11 111 16002 100.21 807 788 151.8
C 14 238 124955 681.28 776 782 182.3
C 0 10 12726 65.53 776 782 182.3
C 0 239 6982 34.01 776 782 182.3
D 1 52 292929 1566.8 774 751 186.5
D 7 223 95870 510.07 774 751 186.5
D 12 227 51567 272.5 774 751 186.5

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