ASTROSAT CZTI

Data Quality Report

Orbit 05488

Creation date: 2024-06-27T14:55:55.440634
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/AS1G06_139T01_9000000700_05488cztM0_level2.evt modeM0/AS1G06_139T01_9000000700_05488cztM0_level2_quad_clean.evt
Size (bytes)452,885,76081,262,080
Size431.9 MB 77.5 MB
Events in quadrant A3,127,865498,246
Events in quadrant B3,612,364494,647
Events in quadrant C3,289,078502,031
Events in quadrant D3,222,154489,868

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141845
B0152432
C0146795
D0145334

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6830580.849195%
B68311051.537110%
C6829650.951823%
D6830570.834553%

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 7656 6833 0 0 0.00% 0.00%
B 7656 6833 12 12 0.16% 0.18%
C 7656 6833 27 27 0.35% 0.40%
D 7656 6833 10 10 0.13% 0.15%

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 13 251 24259 142.16 804 785 165.1
A 13 6 8557 47.07 804 785 165.1
A 12 194 8105 44.33 804 785 165.1
B 15 204 215502 1370.91 812 792 156.6
B 11 51 72064 455.07 812 792 156.6
B 7 252 60804 383.17 812 792 156.6
C 9 247 217531 1200.64 777 782 180.5
C 1 16 32745 177.05 777 782 180.5
C 13 61 6296 30.54 777 782 180.5
D 2 152 76657 389.73 782 756 194.8
D 8 195 59246 300.33 782 756 194.8
D 2 33 31882 159.82 782 756 194.8

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