ASTROSAT CZTI

Data Quality Report

Orbit 47462

Creation date: 2024-07-08T03:57:15.424844
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/AS1A13_089T01_9000006330_47462cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47462cztM0_level2_quad_clean.evt
Size (bytes)806,581,44087,448,320
Size769.2 MB 83.4 MB
Events in quadrant A7,315,849700,198
Events in quadrant B3,655,473738,954
Events in quadrant C2,936,916719,205
Events in quadrant D15,443,20435,715

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0262871
B0152571
C0134331
D0502531

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65103936.036866%
B65101942.980031%
C651180.122869%
D6511622195.545999%

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 7625 6511 159 159 2.09% 2.44%
B 7625 6511 101 101 1.32% 1.55%
C 7626 6512 3 3 0.04% 0.05%
D 7626 6511 5320 5320 69.76% 81.71%

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 3834657 25204.4 725 711 152.1
A 9 191 420267 2758.16 725 711 152.1
A 14 235 204839 1341.94 725 711 152.1
B 5 32 571325 4026.36 728 707 141.7
B 0 190 85766 600.19 728 707 141.7
B 0 198 23102 158.02 728 707 141.7
C 3 233 66955 387.24 727 732 171.0
C 14 254 23841 135.13 727 732 171.0
C 0 207 12396 68.21 727 732 171.0
D 2 165 13049785 169773.88 291 281 76.9
D 6 112 1020219 13269.38 291 281 76.9
D 13 171 61067 790.83 291 281 76.9

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