ASTROSAT CZTI

Data Quality Report

Orbit 06034

Creation date: 2024-06-27T15:01:56.576202
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/AS1A02_006T01_9000000776_06034cztM0_level2.evt modeM0/AS1A02_006T01_9000000776_06034cztM0_level2_quad_clean.evt
Size (bytes)873,838,080151,413,120
Size833.4 MB 144.4 MB
Events in quadrant A7,479,116933,494
Events in quadrant B6,465,793952,861
Events in quadrant C5,553,661940,619
Events in quadrant D6,138,267913,268

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02460
B02460
C02460
D02460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0299092
B0271432
C0255504
D0274772

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A122264823.942418%
B122264683.827908%
C122253402.781186%
D122264003.271716%

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 12616 12226 24 24 0.19% 0.20%
B 12616 12226 46 46 0.36% 0.38%
C 12616 12226 0 0 0.00% 0.00%
D 12616 12227 15 15 0.12% 0.12%

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 13 34 1549942 5305.95 1422 1390 291.9
A 15 234 384271 1311.9 1422 1390 291.9
A 13 251 45713 151.87 1422 1390 291.9
B 15 204 431418 1536.47 1440 1403 279.9
B 3 64 268540 954.5 1440 1403 279.9
B 15 85 77201 270.83 1440 1403 279.9
C 1 241 24706 71.1 1401 1403 327.7
C 8 128 19004 53.7 1401 1403 327.7
C 9 16 13478 36.84 1401 1403 327.7
D 12 6 593115 1725.31 1395 1353 343.0
D 2 63 69773 199.48 1395 1353 343.0
D 14 173 63903 182.37 1395 1353 343.0

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