ASTROSAT CZTI

Data Quality Report

Orbit 05129

Creation date: 2024-06-27T14:51:43.175754
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_230T05_9000000648_05129cztM0_level2.evt modeM0/AS1G05_230T05_9000000648_05129cztM0_level2_quad_clean.evt
Size (bytes)501,828,48067,075,200
Size478.6 MB 64.0 MB
Events in quadrant A3,367,122379,146
Events in quadrant B3,913,770387,149
Events in quadrant C3,379,611389,025
Events in quadrant D4,045,109371,279

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016210
B016214
C01626
D016210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167171468
B0181681823
C0167621448
D0193602024

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72253104.290657%
B72103464.798890%
C72311952.696722%
D72203675.083102%

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 8184 7487 5 5 0.06% 0.07%
B 8184 7492 7 7 0.09% 0.09%
C 8184 7501 1 1 0.01% 0.01%
D 8184 7471 165 165 2.02% 2.21%

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 38020 206.86 862 836 179.8
A 0 226 9156 46.29 862 836 179.8
A 12 194 8856 44.62 862 836 179.8
B 15 204 260406 1533.08 866 844 169.3
B 8 3 196567 1156.02 866 844 169.3
B 4 48 42087 243.6 866 844 169.3
C 12 4 40821 202.03 844 848 197.9
C 9 16 36366 179.51 844 848 197.9
C 13 61 7029 31.24 844 848 197.9
D 2 33 854259 4056.2 841 813 210.4
D 2 234 11679 51.64 841 813 210.4
D 2 14 11410 50.36 841 813 210.4

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