ASTROSAT CZTI

Data Quality Report

Orbit 28212

Creation date: 2024-06-27T19:49:14.010585
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/AS1A10_045T09_9000004072_28212cztM0_level2.evt modeM0/AS1A10_045T09_9000004072_28212cztM0_level2_quad_clean.evt
Size (bytes)481,717,440116,884,800
Size459.4 MB 111.5 MB
Events in quadrant A3,325,046785,820
Events in quadrant B3,407,334812,991
Events in quadrant C3,385,388757,815
Events in quadrant D4,026,440726,650

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139380
B0141970
C0141450
D0162540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6554460.701861%
B6554781.190113%
C6554871.327434%
D6554961.464754%

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 7849 6555 0 0 0.00% 0.00%
B 7849 6555 2 2 0.03% 0.03%
C 7849 6555 0 0 0.00% 0.00%
D 7849 6555 48 48 0.61% 0.73%

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 13 254 9084 48.24 860 845 170.8
A 3 137 7853 41.04 860 845 170.8
A 8 192 7703 40.16 860 845 170.8
B 12 111 19497 115.02 861 844 162.2
B 0 190 18587 109.41 861 844 162.2
B 11 111 17913 105.26 861 844 162.2
C 14 238 134216 705.55 820 829 189.1
C 9 54 26011 133.2 820 829 189.1
C 8 222 15282 76.45 820 829 189.1
D 1 52 583831 3051.07 811 791 191.1
D 8 195 146180 760.83 811 791 191.1
D 12 79 126275 656.66 811 791 191.1

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