ASTROSAT CZTI

Data Quality Report

Orbit 29402

Creation date: 2024-06-27T20:03:36.252825
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/AS1A10_101T19_9000004228_29402cztM0_level2.evt modeM0/AS1A10_101T19_9000004228_29402cztM0_level2_quad_clean.evt
Size (bytes)840,467,52076,803,840
Size801.5 MB 73.2 MB
Events in quadrant A4,771,282461,535
Events in quadrant B4,187,338474,646
Events in quadrant C4,898,196458,771
Events in quadrant D11,093,557411,010

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0187602
B0169902
C0194982
D0381812

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74653684.929672%
B74652293.067649%
C74652503.348962%
D7465239732.109846%

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 7915 7467 217 217 2.74% 2.91%
B 7915 7467 46 46 0.58% 0.62%
C 7915 7467 0 0 0.00% 0.00%
D 7915 7467 1908 1908 24.11% 25.55%

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 1 113 1070446 5512.91 959 939 194.0
A 13 254 13878 66.7 959 939 194.0
A 3 137 9438 43.81 959 939 194.0
B 5 255 234491 1264.2 945 919 184.8
B 0 229 135842 730.27 945 919 184.8
B 10 245 64142 342.19 945 919 184.8
C 3 233 1138677 5238.13 916 921 217.2
C 14 238 146160 668.67 916 921 217.2
C 4 222 19471 85.4 916 921 217.2
D 8 195 4785845 23529.99 840 818 203.4
D 1 52 1472343 7236.11 840 818 203.4
D 12 33 1435045 7052.7 840 818 203.4

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