ASTROSAT CZTI

Data Quality Report

Orbit 09552

Creation date: 2024-06-27T15:47:37.919161
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/AS1G07_049T02_9000001354_09552cztM0_level2.evt modeM0/AS1G07_049T02_9000001354_09552cztM0_level2_quad_clean.evt
Size (bytes)253,644,48074,888,640
Size241.9 MB 71.4 MB
Events in quadrant A1,734,847514,479
Events in quadrant B1,936,515515,102
Events in quadrant C1,661,645509,778
Events in quadrant D2,114,415485,675

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A073261
B079711
C072481
D084471

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3426100.291886%
B3426220.642148%
C342650.145943%
D3427812.363583%

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 3426 3426 0 0 0.00% 0.00%
B 3426 3426 5 5 0.15% 0.15%
C 3426 3426 0 0 0.00% 0.00%
D 3427 3427 41 41 1.20% 1.20%

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 1 162 17885 197.45 443 435 88.4
A 1 178 5024 51.93 443 435 88.4
A 1 161 4710 48.37 443 435 88.4
B 4 80 110591 1358.88 437 428 81.1
B 4 81 54778 670.42 437 428 81.1
B 0 214 50223 614.23 437 428 81.1
C 14 234 10973 108.33 423 425 97.4
C 13 61 3128 27.76 423 425 97.4
C 8 222 1459 10.62 423 425 97.4
D 12 227 245071 2360.12 418 410 103.7
D 7 71 162056 1559.32 418 410 103.7
D 12 233 32302 307.65 418 410 103.7

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