ASTROSAT CZTI

Data Quality Report

Orbit 48084

Creation date: 2024-08-20T12:39:25.095566
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_071T07_9000006398_48084cztM0_level2.fits modeM0/AS1A13_071T07_9000006398_48084cztM0_level2_quad_clean.evt
Size (bytes)425,188,80083,764,800
Size405.5 MB 79.9 MB
Events in quadrant A7,002,589711,105
Events in quadrant B1,130,07945,271
Events in quadrant C2,806,902703,629
Events in quadrant D4,297,406628,951

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0252832
B069022
C0131592
D0173882

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63653745.875884%
B63656365100.000000%
C6365150.235664%
D63653715.828751%

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 7560 6366 149 149 1.97% 2.34%
B 7559 6364 0 0 0.00% 0.00%
C 7560 6366 5 5 0.07% 0.08%
D 7560 6366 346 346 4.58% 5.44%

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 10 83 4223240 29095.91 695 682 145.1
A 13 248 55126 375.15 695 682 145.1
A 7 3 16044 105.85 695 682 145.1
B 2 177 877471 78145.93 46 44 11.2
B 4 21 47275 4206.52 46 44 11.2
B 5 32 5286 466.87 46 44 11.2
C 14 254 44588 274.4 684 686 160.0
C 1 3 35992 220.67 684 686 160.0
C 11 16 21690 131.28 684 686 160.0
D 14 34 1258119 7575.12 666 646 166.0
D 2 249 324474 1950.76 666 646 166.0
D 2 165 41909 248.57 666 646 166.0

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