ASTROSAT CZTI

Data Quality Report

Orbit 05462

Creation date: 2024-06-27T14:55:30.622816
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/AS1G06_087T03_9000000696_05462cztM0_level2.evt modeM0/AS1G06_087T03_9000000696_05462cztM0_level2_quad_clean.evt
Size (bytes)397,028,16065,125,440
Size378.6 MB 62.1 MB
Events in quadrant A2,619,542419,481
Events in quadrant B2,798,866405,779
Events in quadrant C2,581,053416,088
Events in quadrant D3,651,194347,900

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A017162
B017165
C017163
D017260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D041

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0176325818
B0185286417
C0176105833
D02594211568

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56301101.953819%
B55191562.826599%
C56061222.176240%
D50663316.533754%

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 8838 6993 2 2 0.02% 0.03%
B 8838 6944 4 4 0.05% 0.06%
C 8838 6984 0 0 0.00% 0.00%
D 8838 6470 136 136 1.54% 2.10%

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 0 247 21653 150.13 668 651 139.9
A 0 50 12649 85.77 668 651 139.9
A 0 226 8390 55.32 668 651 139.9
B 15 204 80925 611.71 663 646 131.2
B 8 3 40263 301.87 663 646 131.2
B 10 16 36559 273.65 663 646 131.2
C 8 128 10977 66.53 655 658 155.1
C 8 112 5301 29.94 655 658 155.1
C 13 61 5223 29.43 655 658 155.1
D 2 33 1121386 7686.22 580 558 145.8
D 8 195 131047 894.85 580 558 145.8
D 4 95 48637 329.71 580 558 145.8

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