ASTROSAT CZTI

Data Quality Report

Orbit 14055

Creation date: 2024-06-27T16:49:44.491504
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/AS1A04_162T01_9000002074_14055cztM0_level2.evt modeM0/AS1A04_162T01_9000002074_14055cztM0_level2_quad_clean.evt
Size (bytes)454,930,560122,587,200
Size433.9 MB 116.9 MB
Events in quadrant A2,880,750854,396
Events in quadrant B3,399,827848,742
Events in quadrant C2,904,213817,245
Events in quadrant D4,193,364781,485

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122982
B0138421
C0122811
D0163941

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5881580.986227%
B58812133.621833%
C5881250.425098%
D58811562.652610%

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 7212 5883 0 0 0.00% 0.00%
B 7212 5883 106 106 1.47% 1.80%
C 7212 5883 3 3 0.04% 0.05%
D 7212 5883 113 113 1.57% 1.92%

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 12 189 48872 326.38 736 723 147.5
A 0 226 6734 40.75 736 723 147.5
A 12 194 5677 33.58 736 723 147.5
B 10 252 284283 2099.05 725 709 135.1
B 3 64 57164 417.89 725 709 135.1
B 0 189 48711 355.32 725 709 135.1
C 3 233 168386 1062.05 694 698 157.9
C 0 207 29197 180.5 694 698 157.9
C 13 61 5044 27.53 694 698 157.9
D 12 110 677512 3974.93 685 668 170.3
D 1 52 343744 2014.8 685 668 170.3
D 8 195 172232 1007.55 685 668 170.3

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