ASTROSAT CZTI

Data Quality Report

Orbit 14734

Creation date: 2024-06-27T16:59:14.506007
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/AS1G08_081T01_9000002178_14734cztM0_level2.evt modeM0/AS1G08_081T01_9000002178_14734cztM0_level2_quad_clean.evt
Size (bytes)539,784,00076,720,320
Size514.8 MB 73.2 MB
Events in quadrant A5,151,560473,906
Events in quadrant B3,680,030475,861
Events in quadrant C3,642,589464,924
Events in quadrant D3,445,453467,512

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0199133
B0151322
C0148802
D0142582

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63182503.956948%
B63181412.231719%
C6318971.535296%
D63181071.693574%

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 7624 6319 7 7 0.09% 0.11%
B 7624 6319 5 5 0.07% 0.08%
C 7624 6319 0 0 0.00% 0.00%
D 7624 6319 4 4 0.05% 0.06%

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 1660046 9377.82 888 872 176.9
A 12 189 71299 398.06 888 872 176.9
A 0 226 7919 39.83 888 872 176.9
B 0 230 87709 530.48 881 863 163.7
B 0 205 46208 276.98 881 863 163.7
B 0 189 36825 219.67 881 863 163.7
C 3 233 287014 1463.06 860 870 195.6
C 13 61 6209 27.3 860 870 195.6
C 8 222 2537 8.52 860 870 195.6
D 12 16 80134 359.9 867 849 220.3
D 13 172 42438 188.79 867 849 220.3
D 2 234 23511 102.87 867 849 220.3

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