ASTROSAT CZTI

Data Quality Report

Orbit 11603

Creation date: 2024-06-27T16:15:47.528979
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/AS1C03_020T01_9000001706_11603cztM0_level2.evt modeM0/AS1C03_020T01_9000001706_11603cztM0_level2_quad_clean.evt
Size (bytes)677,900,16061,853,760
Size646.5 MB 59.0 MB
Events in quadrant A7,621,139331,577
Events in quadrant B4,668,807364,188
Events in quadrant C3,022,968376,866
Events in quadrant D4,770,462338,883

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0272413
B0181432
C0134592
D0187242

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6605135720.545042%
B66054346.570780%
C6605280.423921%
D660581712.369417%

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 7586 6607 932 932 12.29% 14.11%
B 7586 6607 253 253 3.34% 3.83%
C 7586 6607 0 0 0.00% 0.00%
D 7586 6607 730 730 9.62% 11.05%

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 8 5 4437331 29642.34 731 716 149.7
A 1 162 124216 825.14 731 716 149.7
A 1 178 71274 471.42 731 716 149.7
B 4 239 864387 5812.58 775 756 148.6
B 10 16 299201 2008.65 775 756 148.6
B 4 81 240922 1616.41 775 756 148.6
C 14 234 11037 57.17 771 775 179.5
C 13 61 5688 27.37 771 775 179.5
C 12 4 5077 23.97 771 775 179.5
D 1 52 2060217 12346.57 686 667 166.8
D 8 195 48052 284.06 686 667 166.8
D 13 104 22692 132.04 686 667 166.8

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