ASTROSAT CZTI

Data Quality Report

Orbit 36003

Creation date: 2022-08-09T16:05:08.511567
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/AS1T04_069T01_9000005158_36003cztM0_level2.evt modeM0/AS1T04_069T01_9000005158_36003cztM0_level2_quad_clean.evt
Size (bytes)407,295,36075,790,080
Size388.4 MB 72.3 MB
Events in quadrant A2,537,090499,122
Events in quadrant B2,997,481493,765
Events in quadrant C3,110,175478,487
Events in quadrant D3,344,214466,869

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105853
B0120402
C0121822
D0131302

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5096110.215856%
B5096921.805338%
C50961843.610675%
D5096821.609105%

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 7040 5097 1 1 0.01% 0.02%
B 7040 5097 56 56 0.80% 1.10%
C 7040 5097 159 159 2.26% 3.12%
D 7040 5097 90 90 1.28% 1.77%

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 166336 1354.37 610 599 122.4
A 13 254 8452 64.17 610 599 122.4
A 3 137 6169 45.52 610 599 122.4
B 5 172 207901 1797.62 598 582 115.3
B 5 255 178746 1544.82 598 582 115.3
B 15 32 110638 954.27 598 582 115.3
C 9 187 365200 2729.6 578 583 133.6
C 15 214 214929 1604.64 578 583 133.6
C 0 10 129535 965.36 578 583 133.6
D 10 118 287722 1979.95 587 569 145.0
D 12 235 262592 1806.67 587 569 145.0
D 12 227 115545 792.77 587 569 145.0

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