ASTROSAT CZTI

Data Quality Report

Orbit 05137

Creation date: 2024-06-27T14:51:49.188769
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_102T01_9000000650_05137cztM0_level2.evt modeM0/AS1G05_102T01_9000000650_05137cztM0_level2_quad_clean.evt
Size (bytes)456,454,08055,195,200
Size435.3 MB 52.6 MB
Events in quadrant A3,073,460308,225
Events in quadrant B3,836,484309,626
Events in quadrant C3,081,301310,770
Events in quadrant D3,398,323296,443

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131713
B0153872
C0132752
D0139982

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6389420.657380%
B63891872.926906%
C6389500.782595%
D6389540.845203%

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 7659 6390 0 0 0.00% 0.00%
B 7659 6390 81 81 1.06% 1.27%
C 7659 6390 5 5 0.07% 0.08%
D 7659 6390 7 7 0.09% 0.11%

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 16439 96.69 795 781 161.9
A 0 226 8017 44.68 795 781 161.9
A 12 194 7804 43.37 795 781 161.9
B 10 16 516198 3441.9 801 784 149.7
B 4 80 98437 652.12 801 784 149.7
B 15 204 48535 318.88 801 784 149.7
C 12 4 35190 192.51 777 782 178.7
C 1 16 12612 66.19 777 782 178.7
C 13 61 6429 31.59 777 782 178.7
D 8 195 339799 1800.4 773 750 188.3
D 12 233 54020 282.87 773 750 188.3
D 2 33 53441 279.8 773 750 188.3

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