ASTROSAT CZTI

Data Quality Report

Orbit 04230

Creation date: 2024-06-27T14:39:05.763825
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_240T01_9000000536_04230cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04230cztM0_level2_quad_clean.evt
Size (bytes)589,835,52069,183,360
Size562.5 MB 66.0 MB
Events in quadrant A4,884,930392,464
Events in quadrant B4,126,212405,530
Events in quadrant C3,976,207392,993
Events in quadrant D4,370,030384,372

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01966634
B0172794
C0168482
D01835511

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74545597.499329%
B74601802.412869%
C7461921.233079%
D74581502.011263%

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 8466 7462 338 338 3.99% 4.53%
B 8466 7462 11 11 0.13% 0.15%
C 8466 7463 1 1 0.01% 0.01%
D 8466 7463 33 33 0.39% 0.44%

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 50 837673 4728.98 853 834 177.0
A 14 111 419643 2366.69 853 834 177.0
A 15 234 311530 1755.75 853 834 177.0
B 3 0 448628 2626.13 884 861 170.5
B 15 204 196491 1147.36 884 861 170.5
B 14 167 16222 90.09 884 861 170.5
C 9 144 620187 3121.02 847 850 198.4
C 10 65 14759 70.09 847 850 198.4
C 9 247 11962 56.0 847 850 198.4
D 11 132 828055 4044.42 844 818 204.5
D 13 239 90393 437.94 844 818 204.5
D 1 52 67094 324.03 844 818 204.5

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