ASTROSAT CZTI

Data Quality Report

Orbit 08381

Creation date: 2024-06-27T15:32:02.425119
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/AS1C02_037T02_9000001170_08381cztM0_level2.evt modeM0/AS1C02_037T02_9000001170_08381cztM0_level2_quad_clean.evt
Size (bytes)439,352,64067,440,960
Size419.0 MB 64.3 MB
Events in quadrant A3,174,904409,597
Events in quadrant B3,354,221412,964
Events in quadrant C3,044,814400,355
Events in quadrant D3,309,698385,349

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130413
B0135922
C0128612
D0137822

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6214691.110396%
B62141031.657547%
C6214300.482781%
D6214821.319601%

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 7559 6216 0 0 0.00% 0.00%
B 7559 6216 9 9 0.12% 0.14%
C 7559 6216 0 0 0.00% 0.00%
D 7559 6216 32 32 0.42% 0.51%

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 1 162 11257 63.13 817 801 165.6
A 0 226 7835 42.47 817 801 165.6
A 12 194 7352 39.55 817 801 165.6
B 0 214 98088 629.57 818 802 154.5
B 4 81 33350 210.63 818 802 154.5
B 12 111 15807 97.1 818 802 154.5
C 13 61 5970 28.45 781 788 182.2
C 3 202 1964 6.46 781 788 182.2
C -1 -1 -1 -1.0 781 788 182.2
D 12 233 97530 507.24 779 756 190.8
D 14 34 77337 401.4 779 756 190.8
D 2 14 67773 351.27 779 756 190.8

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