ASTROSAT CZTI

Data Quality Report

Orbit 47059

Creation date: 2024-06-27T23:31:15.402539
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/AS1C09_005T01_9000006296_47059cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47059cztM0_level2_quad_clean.evt
Size (bytes)507,945,600112,311,360
Size484.4 MB 107.1 MB
Events in quadrant A6,634,186746,533
Events in quadrant B4,317,551742,742
Events in quadrant C3,183,635739,242
Events in quadrant D4,120,061680,922

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0244890
B0175921
C0149290
D0173720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70531672.367787%
B70522783.942144%
C7053380.538778%
D70531121.587977%

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 7053 7053 4 4 0.06% 0.06%
B 7052 7052 113 113 1.60% 1.60%
C 7053 7053 25 25 0.35% 0.35%
D 7053 7053 84 84 1.19% 1.19%

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 10 83 3558859 21657.05 779 757 164.3
A 13 6 19937 116.74 779 757 164.3
A 13 248 19630 114.87 779 757 164.3
B 3 112 570325 3812.99 766 742 149.4
B 5 172 388101 2593.12 766 742 149.4
B 4 171 162148 1080.51 766 742 149.4
C 14 254 195244 1084.58 760 762 179.3
C 12 250 10876 56.4 760 762 179.3
C 1 3 7026 34.93 760 762 179.3
D 1 52 500310 2667.18 761 737 187.3
D 2 249 205528 1093.36 761 737 187.3
D 12 233 168785 897.19 761 737 187.3

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