ASTROSAT CZTI

Data Quality Report

Orbit 08017

Creation date: 2024-06-27T15:26:54.408267
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_154T02_9000001102_08017cztM0_level2.evt modeM0/AS1G06_154T02_9000001102_08017cztM0_level2_quad_clean.evt
Size (bytes)439,689,600105,626,880
Size419.3 MB 100.7 MB
Events in quadrant A3,160,913676,533
Events in quadrant B3,285,792702,668
Events in quadrant C3,226,374701,491
Events in quadrant D3,207,935671,891

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136903
B0138872
C0138402
D0138682

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6401560.874863%
B6401771.202937%
C6401570.890486%
D6401480.749883%

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 8911 6403 0 0 0.00% 0.00%
B 8911 6403 2 2 0.02% 0.03%
C 8911 6403 0 0 0.00% 0.00%
D 8911 6403 7 7 0.08% 0.11%

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 0 226 7700 41.38 821 805 166.6
A 12 194 6797 35.96 821 805 166.6
A 3 137 3211 14.44 821 805 166.6
B 5 250 52695 332.58 830 809 156.0
B 12 111 17314 105.79 830 809 156.0
B 11 111 14101 85.2 830 809 156.0
C 13 61 6135 28.15 823 830 188.5
C 1 16 4858 21.37 823 830 188.5
C 12 4 4613 20.07 823 830 188.5
D 2 14 68283 350.35 814 794 192.6
D 1 52 34482 174.88 814 794 192.6
D 2 234 16431 81.18 814 794 192.6

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