ASTROSAT CZTI

Data Quality Report

Orbit 08115

Creation date: 2024-06-27T15:28:12.361391
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_033T01_9000001116_08115cztM0_level2.evt modeM0/AS1G06_033T01_9000001116_08115cztM0_level2_quad_clean.evt
Size (bytes)432,011,52076,826,880
Size412.0 MB 73.3 MB
Events in quadrant A3,118,617471,306
Events in quadrant B3,101,801476,882
Events in quadrant C2,949,851477,250
Events in quadrant D3,476,242452,584

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132302
B0132481
C0130511
D0144811

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6428921.431238%
B6428771.197884%
C6428630.980087%
D6428991.540137%

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 7368 6428 0 0 0.00% 0.00%
B 7368 6428 2 2 0.03% 0.03%
C 7368 6428 0 0 0.00% 0.00%
D 7368 6428 31 31 0.42% 0.48%

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 15 122535 761.2 778 763 160.0
A 0 226 7404 41.51 778 763 160.0
A 12 194 7068 39.41 778 763 160.0
B 0 214 45125 296.23 777 758 149.8
B 10 16 20191 129.75 777 758 149.8
B 12 111 15310 97.16 777 758 149.8
C 13 61 5787 28.63 755 760 175.6
C 1 16 3535 15.8 755 760 175.6
C 8 222 2368 9.16 755 760 175.6
D 1 52 311843 1662.01 757 735 187.2
D 2 152 77131 408.12 757 735 187.2
D 7 71 76798 406.35 757 735 187.2

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