ASTROSAT CZTI

Data Quality Report

Orbit 09265

Creation date: 2024-06-27T15:43:29.319675
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/AS1A03_062T04_9000001298_09265cztM0_level2.evt modeM0/AS1A03_062T04_9000001298_09265cztM0_level2_quad_clean.evt
Size (bytes)63,328,32018,492,480
Size60.4 MB 17.6 MB
Events in quadrant A521,086124,296
Events in quadrant B464,218129,120
Events in quadrant C438,715124,826
Events in quadrant D435,750117,359

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A021280
B018820
C017850
D017900

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80950.618047%
B80950.618047%
C80930.370828%
D80930.370828%

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 809 809 0 0 0.00% 0.00%
B 809 809 0 0 0.00% 0.00%
C 809 809 0 0 0.00% 0.00%
D 809 809 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 8 5 64112 2599.94 110 108 24.6
A 13 251 23079 933.12 110 108 24.6
A 1 162 4853 192.75 110 108 24.6
B 4 173 16845 727.1 112 110 23.0
B 0 214 2447 101.54 112 110 23.0
B 15 204 2405 99.71 112 110 23.0
C 9 68 10700 395.51 109 109 26.8
C 13 61 808 26.1 109 109 26.8
C 7 159 485 14.04 109 109 26.8
D 10 199 10156 358.89 108 105 28.0
D 1 52 8817 311.08 108 105 28.0
D 2 234 2644 90.66 108 105 28.0

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