ASTROSAT CZTI

Data Quality Report

Orbit 23073

Creation date: 2024-06-27T18:49:24.253425
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/AS1A07_049T01_9000003408_23073cztM0_level2.evt modeM0/AS1A07_049T01_9000003408_23073cztM0_level2_quad_clean.evt
Size (bytes)477,552,96069,281,280
Size455.4 MB 66.1 MB
Events in quadrant A3,301,930418,359
Events in quadrant B3,413,010430,226
Events in quadrant C3,642,435406,872
Events in quadrant D3,675,258400,198

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135341
B0139421
C0146451
D0149571

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6336290.457702%
B6336380.599747%
C63362473.898359%
D6336781.231061%

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 7756 6337 0 0 0.00% 0.00%
B 7756 6337 15 15 0.19% 0.24%
C 7756 6337 67 67 0.86% 1.06%
D 7756 6337 41 41 0.53% 0.65%

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 6 16 22314 127.22 851 837 168.8
A 13 254 9562 51.68 851 837 168.8
A 0 226 7296 38.26 851 837 168.8
B 4 216 54580 339.64 852 834 158.2
B 12 111 18421 111.14 852 834 158.2
B 11 111 16772 100.72 852 834 158.2
C 0 10 294563 1555.14 816 825 188.9
C 14 238 131497 691.82 816 825 188.9
C 0 207 19184 97.2 816 825 188.9
D 1 239 191710 954.35 834 814 200.0
D 1 52 170160 846.61 834 814 200.0
D 12 227 84916 420.45 834 814 200.0

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