ASTROSAT CZTI

Data Quality Report

Orbit 31008

Creation date: 2024-06-27T20:22:14.162712
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/AS1A10_071T52_9000004480_31008cztM0_level2.evt modeM0/AS1A10_071T52_9000004480_31008cztM0_level2_quad_clean.evt
Size (bytes)544,337,28079,902,720
Size519.1 MB 76.2 MB
Events in quadrant A3,268,356505,718
Events in quadrant B5,297,116508,750
Events in quadrant C3,876,158470,673
Events in quadrant D3,593,710471,134

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137092
B0202692
C0154632
D0147862

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6638420.632721%
B66381001.506478%
C66382303.464899%
D6638640.964146%

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 7613 6639 0 0 0.00% 0.00%
B 7613 6638 5 5 0.07% 0.08%
C 7613 6639 112 112 1.47% 1.69%
D 7613 6639 39 39 0.51% 0.59%

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 13 254 12681 70.07 844 828 169.2
A 3 137 8379 44.64 844 828 169.2
A 0 226 7090 37.02 844 828 169.2
B 6 159 1897001 11717.25 838 815 161.8
B 0 230 33211 200.19 838 815 161.8
B 0 190 19733 116.9 838 815 161.8
C 0 10 603240 3232.62 795 802 186.4
C 14 238 128579 685.64 795 802 186.4
C 15 208 18681 95.94 795 802 186.4
D 8 195 396309 2050.07 806 782 192.9
D 7 69 45581 232.2 806 782 192.9
D 2 250 41864 212.93 806 782 192.9

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