ASTROSAT CZTI

Data Quality Report

Orbit 04293

Creation date: 2024-06-27T14:40:00.631421
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/AS1G05_256T01_9000000538_04293cztM0_level2.evt modeM0/AS1G05_256T01_9000000538_04293cztM0_level2_quad_clean.evt
Size (bytes)742,740,480100,065,600
Size708.3 MB 95.4 MB
Events in quadrant A4,112,345684,534
Events in quadrant B3,446,956681,877
Events in quadrant C7,099,404569,050
Events in quadrant D7,367,915612,210

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170053
B0150692
C0261812
D0267995

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69003414.942029%
B6900540.782609%
C6900191227.710145%
D6899127618.495434%

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 7765 6901 260 260 3.35% 3.77%
B 7765 6901 17 17 0.22% 0.25%
C 7764 6899 1658 1658 21.35% 24.03%
D 7765 6901 1205 1205 15.52% 17.46%

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 0 199 738531 4772.3 748 731 154.6
A 15 234 330282 2131.63 748 731 154.6
A 0 226 81753 524.07 748 731 154.6
B 14 167 382006 2585.67 765 747 147.5
B 4 48 27176 179.24 765 747 147.5
B 10 16 18576 120.91 765 747 147.5
C 9 144 4564875 31318.75 626 628 145.7
C 9 247 72486 493.07 626 628 145.7
C 10 65 10024 64.47 626 628 145.7
D 2 232 3899998 23836.2 677 657 163.6
D 15 217 358352 2186.55 677 657 163.6
D 2 37 215726 1314.69 677 657 163.6

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