ASTROSAT CZTI

Data Quality Report

Orbit 16986

Creation date: 2024-06-27T17:30:17.706806
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/AS1A05_143T01_9000002524_16986cztM0_level2.evt modeM0/AS1A05_143T01_9000002524_16986cztM0_level2_quad_clean.evt
Size (bytes)73,434,24019,200,960
Size70.0 MB 18.3 MB
Events in quadrant A432,568127,511
Events in quadrant B610,478127,190
Events in quadrant C630,583121,845
Events in quadrant D475,064123,246

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A021110
B025100
C025930
D021660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A105500.000000%
B105520.189573%
C105540.379147%
D105500.000000%

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 1056 1056 0 0 0.00% 0.00%
B 1056 1056 2 2 0.19% 0.19%
C 1056 1056 0 0 0.00% 0.00%
D 1056 1056 0 0 0.00% 0.00%

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 0 226 1019 36.2 112 109 25.1
A 3 137 811 27.93 112 109 25.1
A 12 194 790 27.09 112 109 25.1
B 3 64 162553 6823.46 113 109 23.8
B 0 229 5113 210.19 113 109 23.8
B 12 111 2492 100.1 113 109 23.8
C 3 233 179850 6460.3 111 111 27.8
C 14 238 16759 598.37 111 111 27.8
C 13 61 827 25.73 111 111 27.8
D 1 52 50076 1736.77 111 108 28.8
D 2 234 4128 139.73 111 108 28.8
D 2 152 2670 89.05 111 108 28.8

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