ASTROSAT CZTI

Data Quality Report

Orbit 46557

Creation date: 2024-06-27T23:24:43.327389
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_005T02_9000006230_46557cztM0_level2.fits modeM0/AS1C03_005T02_9000006230_46557cztM0_level2_quad_clean.evt
Size (bytes)574,781,76096,791,040
Size548.2 MB 92.3 MB
Events in quadrant A5,874,907679,848
Events in quadrant B3,004,805706,334
Events in quadrant C7,532,466496,142
Events in quadrant D4,368,403602,021

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0214641
B0133741
C0268161
D0174221

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63931322.064758%
B6394270.422271%
C6394186029.089772%
D63942533.956835%

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 7373 6393 39 39 0.53% 0.61%
B 7374 6395 4 4 0.05% 0.06%
C 7374 6395 1872 1872 25.39% 29.27%
D 7374 6395 213 213 2.89% 3.33%

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 3020162 21254.07 685 670 142.1
A 14 235 80685 563.22 685 670 142.1
A 0 247 64682 450.58 685 670 142.1
B 3 112 72270 534.52 688 667 134.0
B 2 2 71087 525.69 688 667 134.0
B 15 201 49662 365.75 688 667 134.0
C 1 241 5090620 36362.51 598 601 140.0
C 14 254 44179 311.32 598 601 140.0
C 3 233 40337 283.87 598 601 140.0
D 1 52 986923 6024.91 660 639 163.7
D 13 249 227893 1388.23 660 639 163.7
D 2 120 193572 1178.57 660 639 163.7

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