ASTROSAT CZTI

Data Quality Report

Orbit 05459

Creation date: 2024-06-27T14:55:26.656681
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_178T01_9000000692_05459cztM0_level2.evt modeM0/AS1G05_178T01_9000000692_05459cztM0_level2_quad_clean.evt
Size (bytes)382,720,32058,760,640
Size365.0 MB 56.0 MB
Events in quadrant A2,445,742360,723
Events in quadrant B2,845,021358,880
Events in quadrant C2,342,410355,630
Events in quadrant D3,602,262338,441

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011275286
B012535441
C010976279
D014763497

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01084
B01080
C01075
D01082

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5227350.669600%
B52101092.092131%
C5223190.363776%
D52121853.549501%

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 5350 5339 1 1 0.02% 0.02%
B 5350 5333 20 20 0.37% 0.38%
C 5350 5339 0 0 0.00% 0.00%
D 5350 5338 154 154 2.88% 2.88%

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 66450 524.05 606 592 125.7
A 0 50 29243 227.98 606 592 125.7
A 13 6 9465 70.61 606 592 125.7
B 15 204 234830 2015.83 606 593 116.2
B 4 48 98968 846.61 606 593 116.2
B 11 51 71464 609.91 606 593 116.2
C 14 67 19613 137.8 591 595 138.0
C 12 4 5148 32.99 591 595 138.0
C 13 61 4758 30.16 591 595 138.0
D 2 33 853845 5881.83 584 565 145.1
D 2 136 204505 1405.8 584 565 145.1
D 2 152 83377 570.84 584 565 145.1

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