ASTROSAT CZTI

Data Quality Report

Orbit 20240629_A13_093T09_9000006320_level2

Creation date: 2024-07-01T15:28:02.316994
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/AS1A13_093T09_9000006320cztM0_level2.fits modeM0/AS1A13_093T09_9000006320cztM0_level2_quad_clean.evt
Size (bytes)461,986,560391,262,400
Size440.6 MB 373.1 MB
Events in quadrant A2,738,9582,217,079
Events in quadrant B2,743,7982,316,124
Events in quadrant C2,836,6222,215,737
Events in quadrant D1,950,8341,386,329

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02047930
B01194170
C01129780
D02399130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011020
B011020
C011020
D011020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0910
B0910
C0910
D0910

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5410624224.476398%
B541068511.572839%
C541063780.698629%
D541061619029.922744%

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 63181 54105 0 0 0.00% 0.00%
B 63181 54106 0 0 0.00% 0.00%
C 63181 54104 0 0 0.00% 0.00%
D 63181 52023 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 7 110 2233 8.4 715 667 186.3
A 14 95 2040 7.37 715 667 186.3
A 7 30 1972 7.0 715 667 186.3
B 2 9 2675 13.89 724 688 143.1
B 2 8 2136 10.12 724 688 143.1
B 3 17 1890 8.4 724 688 143.1
C 1 81 2185 7.48 750 693 199.4
C 3 202 2059 6.85 750 693 199.4
C 1 80 2046 6.78 750 693 199.4
D 6 67 1432 5.91 559 506 156.7
D 7 3 1427 5.87 559 506 156.7
D 10 189 1412 5.78 559 506 156.7

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