ASTROSAT CZTI

Data Quality Report

Orbit 03706

Creation date: 2024-06-27T14:32:39.579726
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/AS1G05_009T01_9000000482_03706cztM0_level2.evt modeM0/AS1G05_009T01_9000000482_03706cztM0_level2_quad_clean.evt
Size (bytes)533,799,36081,576,000
Size509.1 MB 77.8 MB
Events in quadrant A3,449,048515,051
Events in quadrant B5,467,279494,335
Events in quadrant C3,219,361505,367
Events in quadrant D3,575,179487,506

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144183
B0206292
C0139112
D0150162

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67111532.279839%
B67116409.536582%
C67111001.490091%
D67111301.937118%

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 7911 6711 20 20 0.25% 0.30%
B 7911 6712 384 384 4.85% 5.72%
C 7911 6712 0 0 0.00% 0.00%
D 7911 6711 35 35 0.44% 0.52%

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 0 50 73683 416.11 853 835 175.1
A 15 174 70625 398.64 853 835 175.1
A 0 226 9622 50.19 853 835 175.1
B 14 167 1843957 11455.55 836 816 160.9
B 15 204 169508 1048.46 836 816 160.9
B 3 0 130997 809.11 836 816 160.9
C 13 61 7050 32.49 820 822 191.7
C 9 247 4635 19.89 820 822 191.7
C 14 67 4426 18.8 820 822 191.7
D 2 37 238593 1202.75 819 797 197.7
D 13 137 54262 270.42 819 797 197.7
D 1 20 46634 231.84 819 797 197.7

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
Veto Counter