ASTROSAT CZTI

Data Quality Report

Orbit 46464

Creation date: 2024-06-27T23:23:26.752340
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/AS1A13_037T01_9000006212_46464cztM0_level2.fits modeM0/AS1A13_037T01_9000006212_46464cztM0_level2_quad_clean.evt
Size (bytes)581,667,840128,531,520
Size554.7 MB 122.6 MB
Events in quadrant A7,466,876858,199
Events in quadrant B3,923,536888,590
Events in quadrant C3,770,544842,426
Events in quadrant D5,743,121739,854

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0275191
B0172371
C0172001
D0226891

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80932643.262078%
B80931211.495119%
C8093640.790807%
D80945126.325673%

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 8093 8093 1 1 0.01% 0.01%
B 8093 8093 15 15 0.19% 0.19%
C 8093 8093 23 23 0.28% 0.28%
D 8093 8093 426 426 5.26% 5.26%

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 10 83 3742177 19047.52 933 909 196.4
A 0 247 67205 337.53 933 909 196.4
A 13 254 15864 76.14 933 909 196.4
B 5 172 103337 556.74 928 898 184.0
B 0 245 40797 216.84 928 898 184.0
B 4 158 24413 127.8 928 898 184.0
C 12 2 130162 606.37 908 909 213.2
C 3 233 64204 296.94 908 909 213.2
C 12 249 30967 141.01 908 909 213.2
D 1 52 1294500 5763.09 893 864 224.5
D 12 233 310827 1380.87 893 864 224.5
D 10 181 175228 776.78 893 864 224.5

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