ASTROSAT CZTI

Data Quality Report

Orbit 05428

Creation date: 2024-06-27T14:55:04.907586
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_132T01_9000000686_05428cztM0_level2.evt modeM0/AS1G05_132T01_9000000686_05428cztM0_level2_quad_clean.evt
Size (bytes)466,214,40074,908,800
Size444.6 MB 71.4 MB
Events in quadrant A2,954,316466,298
Events in quadrant B3,392,451471,266
Events in quadrant C2,848,073468,066
Events in quadrant D4,500,098426,409

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01262
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01301129
B01417510
C0128294
D01779035

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6251240.383939%
B6259450.718965%
C6262170.271479%
D62522544.062700%

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 7568 6263 1 1 0.01% 0.02%
B 7568 6264 1 1 0.01% 0.02%
C 7568 6264 0 0 0.00% 0.00%
D 7568 6264 248 248 3.28% 3.96%

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 57629 372.63 750 734 152.7
A 13 6 7971 47.4 750 734 152.7
A 0 226 7549 44.63 750 734 152.7
B 15 204 261763 1797.17 764 748 145.2
B 0 219 49622 336.51 764 748 145.2
B 4 48 30831 207.13 764 748 145.2
C 9 247 14454 82.77 723 727 165.9
C 13 61 5935 31.4 723 727 165.9
C 14 67 5078 26.23 723 727 165.9
D 2 152 647600 3719.83 705 683 173.9
D 2 33 443724 2547.52 705 683 173.9
D 12 233 297205 1705.03 705 683 173.9

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