ASTROSAT CZTI

Data Quality Report

Orbit 46523

Creation date: 2024-06-27T23:24:12.600094
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_068T07_9000006222_46523cztM0_level2.fits modeM0/AS1A13_068T07_9000006222_46523cztM0_level2_quad_clean.evt
Size (bytes)625,567,680119,361,600
Size596.6 MB 113.8 MB
Events in quadrant A8,812,144767,739
Events in quadrant B5,039,917809,350
Events in quadrant C3,937,898785,930
Events in quadrant D4,775,552719,884

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0316893
B0199450
C0172951
D0194090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76345617.348703%
B76352933.837590%
C76341241.624312%
D76351842.409954%

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 7634 7634 372 372 4.87% 4.87%
B 7635 7635 236 236 3.09% 3.09%
C 7634 7634 107 107 1.40% 1.40%
D 7635 7635 187 187 2.45% 2.45%

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 3761880 21630.83 834 815 173.9
A 14 235 839686 4824.56 834 815 173.9
A 15 174 432338 2481.8 834 815 173.9
B 15 201 943562 5760.35 838 816 163.7
B 3 112 171741 1044.38 838 816 163.7
B 4 171 126702 769.19 838 816 163.7
C 12 2 246234 1260.24 827 830 194.7
C 14 254 227507 1164.07 827 830 194.7
C 9 54 127623 651.13 827 830 194.7
D 13 249 375678 1792.72 830 803 209.1
D 1 52 270112 1287.88 830 803 209.1
D 1 47 176795 841.63 830 803 209.1

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