ASTROSAT CZTI

Data Quality Report

Orbit 20240328_A13_017T01_9000006148_level2

Creation date: 2024-04-03T11:38:59.160276
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_017T01_9000006148cztM0_level2.fits modeM0/AS1A13_017T01_9000006148cztM0_level2_quad_clean.evt
Size (bytes)1,256,662,0801,288,728,000
Size1.2 GB 1.2 GB
Events in quadrant A7,270,4827,420,707
Events in quadrant B6,933,7667,247,874
Events in quadrant C7,606,7847,723,059
Events in quadrant D6,386,5506,793,523

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A029140
B029140
C029140
D029140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05140410
B05327550
C03078370
D03984160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01880
B01880
C01890
D01890

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A14366598656.866669%
B1436651992613.869766%
C14366623051.604416%
D14366569824.859917%

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 206218 143331 0 0 0.00% 0.00%
B 206217 143607 0 0 0.00% 0.00%
C 206217 143625 0 0 0.00% 0.00%
D 206218 143556 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 5924 8.66 1894 1766 479.9
A 0 29 5591 7.97 1894 1766 479.9
A 15 236 5580 7.95 1894 1766 479.9
B 2 9 6409 12.83 1828 1734 364.5
B 2 8 5133 9.32 1828 1734 364.5
B 3 17 4898 8.68 1828 1734 364.5
C 3 202 5858 7.67 2010 1873 519.3
C 3 203 5773 7.51 2010 1873 519.3
C 1 81 5759 7.48 2010 1873 519.3
D 8 176 5361 7.33 1831 1664 504.6
D 4 250 4876 6.36 1831 1664 504.6
D 10 189 4608 5.83 1831 1664 504.6

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