ASTROSAT CZTI

Data Quality Report

Orbit 04209

Creation date: 2024-06-27T14:38:49.479059
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/AS1G05_240T01_9000000536_04209cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04209cztM0_level2_quad_clean.evt
Size (bytes)533,413,44075,176,640
Size508.7 MB 71.7 MB
Events in quadrant A4,900,077469,745
Events in quadrant B3,991,038465,683
Events in quadrant C2,931,354463,067
Events in quadrant D3,890,546424,074

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0187682
B0159571
C0132161
D0161561

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A650267910.442941%
B65022123.260535%
C6502310.476776%
D65023675.644417%

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 7612 6503 510 510 6.70% 7.84%
B 7612 6503 128 128 1.68% 1.97%
C 7612 6503 0 0 0.00% 0.00%
D 7612 6503 288 288 3.78% 4.43%

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 15 234 1743453 11539.38 744 727 151.0
A 0 50 250157 1651.59 744 727 151.0
A 8 15 20729 132.44 744 727 151.0
B 3 0 903550 6089.04 772 753 148.3
B 15 204 43663 289.41 772 753 148.3
B 0 183 21074 137.06 772 753 148.3
C 14 67 13996 76.15 746 751 173.9
C 13 61 6107 30.79 746 751 173.9
C 10 65 3445 15.49 746 751 173.9
D 13 239 1010687 5752.27 727 708 175.6
D 12 110 44588 249.92 727 708 175.6
D 2 206 19972 109.72 727 708 175.6

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