ASTROSAT CZTI

Data Quality Report

Orbit 01210

Creation date: 2024-06-27T14:09:12.201484
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/AS1G04_007T02_9000000220_01210cztM0_level2.evt modeM0/AS1G04_007T02_9000000220_01210cztM0_level2_quad_clean.evt
Size (bytes)1,054,765,440101,162,880
Size1005.9 MB 96.5 MB
Events in quadrant A7,851,686661,635
Events in quadrant B8,268,171656,379
Events in quadrant C7,971,431641,216
Events in quadrant D7,405,289634,901

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280982
B0293451
C0284231
D0268071

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6732110.163399%
B6732100.148544%
C673260.089127%
D6732660.980392%

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 7637 6733 142 142 1.86% 2.11%
B 7637 6733 199 199 2.61% 2.96%
C 7637 6733 151 151 1.98% 2.24%
D 7637 6733 175 175 2.29% 2.60%

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 8 14 62012 123.83 2013 2021 484.4
A 12 243 28827 55.33 2013 2021 484.4
A 14 238 23190 43.7 2013 2021 484.4
B 6 53 96033 187.92 2125 2130 499.7
B 15 22 47481 90.76 2125 2130 499.7
B 5 191 29690 55.15 2125 2130 499.7
C 15 241 349001 644.28 1935 2005 538.6
C 9 52 25421 43.48 1935 2005 538.6
C 3 111 25046 42.78 1935 2005 538.6
D 9 66 162554 278.38 1859 1925 577.0
D 10 84 121552 207.32 1859 1925 577.0
D 1 83 49873 83.1 1859 1925 577.0

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