ASTROSAT CZTI

Data Quality Report

Orbit 48244

Creation date: 2024-09-05T17:18:01.516550
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_029T01_9000006422_48244cztM0_level2.fits modeM0/AS1A13_029T01_9000006422_48244cztM0_level2_quad_clean.evt
Size (bytes)561,055,680109,895,040
Size535.1 MB 104.8 MB
Events in quadrant A7,275,800751,960
Events in quadrant B3,622,650788,157
Events in quadrant C3,040,116751,638
Events in quadrant D6,325,839582,341

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0263371
B0149661
C0134221
D0230821

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65023355.152261%
B65031402.152853%
C6503500.768876%
D6503118518.222359%

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 7687 6502 42 42 0.55% 0.65%
B 7688 6503 20 20 0.26% 0.31%
C 7688 6504 0 0 0.00% 0.00%
D 7687 6502 1087 1087 14.14% 16.72%

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 4137475 25257.27 782 766 163.8
A 0 31 43854 263.08 782 766 163.8
A 13 248 40910 245.1 782 766 163.8
B 0 200 280899 1822.92 784 761 153.7
B 4 21 119601 773.32 784 761 153.7
B 5 255 66300 426.48 784 761 153.7
C 14 254 32191 174.69 768 773 179.9
C 12 249 10126 52.0 768 773 179.9
C 13 61 5151 24.34 768 773 179.9
D 2 165 3318289 18554.6 705 684 178.8
D 12 233 122124 679.19 705 684 178.8
D 2 249 85893 476.55 705 684 178.8

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