ASTROSAT CZTI

Data Quality Report

Orbit 16036

Creation date: 2024-06-27T17:17:05.582024
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_012T01_9000002370_16036cztM0_level2.evt modeM0/AS1G08_012T01_9000002370_16036cztM0_level2_quad_clean.evt
Size (bytes)459,915,84071,426,880
Size438.6 MB 68.1 MB
Events in quadrant A3,358,327434,635
Events in quadrant B3,460,203440,427
Events in quadrant C3,429,987424,705
Events in quadrant D3,251,807422,809

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140973
B0144412
C0141072
D0137962

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6306751.189343%
B6306841.332065%
C63061121.776086%
D6306590.935617%

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 7597 6307 1 1 0.01% 0.02%
B 7597 6307 0 0 0.00% 0.00%
C 7597 6307 0 0 0.00% 0.00%
D 7597 6307 1 1 0.01% 0.02%

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 9 143 20738 115.64 866 851 172.0
A 12 96 10331 55.13 866 851 172.0
A 0 226 7494 38.63 866 851 172.0
B 0 230 50441 303.55 862 842 163.4
B 0 229 46625 280.2 862 842 163.4
B 12 111 18410 107.52 862 842 163.4
C 14 238 130664 677.25 831 841 191.7
C 3 233 58205 299.25 831 841 191.7
C 13 61 5929 26.54 831 841 191.7
D 2 152 23557 109.31 847 826 208.0
D 2 234 20917 96.61 847 826 208.0
D 13 172 9788 43.1 847 826 208.0

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