ASTROSAT CZTI

Data Quality Report

Orbit 09368

Creation date: 2024-06-27T15:45:08.075002
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/AS1G07_040T01_9000001326_09368cztM0_level2.evt modeM0/AS1G07_040T01_9000001326_09368cztM0_level2_quad_clean.evt
Size (bytes)542,638,080105,321,600
Size517.5 MB 100.4 MB
Events in quadrant A4,236,281677,737
Events in quadrant B3,381,101692,038
Events in quadrant C3,144,769673,055
Events in quadrant D5,175,009637,063

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172863
B0151832
C0147972
D0205262

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73231612.198553%
B7323590.805681%
C7323320.436979%
D73232964.042059%

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 7798 7324 56 56 0.72% 0.76%
B 7798 7324 2 2 0.03% 0.03%
C 7798 7324 0 0 0.00% 0.00%
D 7798 7324 153 153 1.96% 2.09%

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 8 5 853212 5066.64 820 800 168.2
A 1 162 68564 402.78 820 800 168.2
A 5 112 46274 270.29 820 800 168.2
B 0 214 60349 375.69 834 813 158.5
B 5 255 26838 164.22 834 813 158.5
B 12 111 17031 102.34 834 813 158.5
C 13 61 6112 28.49 803 803 186.3
C 9 68 5652 26.02 803 803 186.3
C 8 222 4333 18.94 803 803 186.3
D 1 52 973781 4754.41 779 757 204.7
D 8 195 838663 4094.2 779 757 204.7
D 12 233 179080 871.33 779 757 204.7

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