ASTROSAT CZTI

Data Quality Report

Orbit 05812

Creation date: 2024-06-27T14:59:26.763069
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/AS1G06_089T01_9000000746_05812cztM0_level2.evt modeM0/AS1G06_089T01_9000000746_05812cztM0_level2_quad_clean.evt
Size (bytes)924,134,400138,553,920
Size881.3 MB 132.1 MB
Events in quadrant A6,854,074847,944
Events in quadrant B5,871,267862,288
Events in quadrant C5,460,856847,987
Events in quadrant D8,959,794777,495

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02939936
B02584612
C02534427
D03593290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02520
B02520
C02520
D02520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A124411661.334298%
B124481060.851542%
C12441380.305442%
D124328326.692407%

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 13344 12456 54 54 0.40% 0.43%
B 13344 12456 11 11 0.08% 0.09%
C 13344 12455 0 0 0.00% 0.00%
D 13344 12455 587 587 4.40% 4.71%

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 15 236 1089401 3726.4 1426 1391 292.0
A 0 50 166220 564.53 1426 1391 292.0
A 15 79 61679 206.48 1426 1391 292.0
B 10 16 83891 296.13 1445 1407 278.5
B 15 204 49018 170.93 1445 1407 278.5
B 4 48 43626 151.57 1445 1407 278.5
C 13 61 11115 29.89 1394 1398 325.1
C 14 67 9676 25.46 1394 1398 325.1
C 8 222 5911 13.88 1394 1398 325.1
D 8 230 3440594 10267.19 1363 1320 335.0
D 1 239 148660 439.85 1363 1320 335.0
D 2 209 53138 154.69 1363 1320 335.0

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