ASTROSAT CZTI

Data Quality Report

Orbit 10117

Creation date: 2024-06-27T15:55:11.536132
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_065T01_9000001454_10117cztM0_level2.evt modeM0/AS1G07_065T01_9000001454_10117cztM0_level2_quad_clean.evt
Size (bytes)466,536,960110,891,520
Size444.9 MB 105.8 MB
Events in quadrant A3,511,432745,102
Events in quadrant B3,433,811752,908
Events in quadrant C3,104,578720,384
Events in quadrant D3,649,106698,071

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145862
B0142301
C0132641
D0146121

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6331811.279419%
B6331841.326805%
C6331510.805560%
D6331811.279419%

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 7621 6331 0 0 0.00% 0.00%
B 7621 6331 2 2 0.03% 0.03%
C 7621 6332 0 0 0.00% 0.00%
D 7621 6332 30 30 0.39% 0.47%

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 8 15 277721 1625.5 839 824 170.3
A 0 226 8133 42.91 839 824 170.3
A 12 194 7305 38.05 839 824 170.3
B 0 214 69962 443.5 828 811 155.9
B 0 189 56973 360.19 828 811 155.9
B 4 239 41167 258.82 828 811 155.9
C 13 61 6018 28.5 795 800 183.1
C 8 222 2625 9.97 795 800 183.1
C 14 67 2006 6.59 795 800 183.1
D 8 195 259517 1257.98 797 781 205.7
D 2 16 111105 536.4 797 781 205.7
D 13 104 85240 410.64 797 781 205.7

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