ASTROSAT CZTI

Data Quality Report

Orbit 06583

Creation date: 2024-06-27T15:09:03.112312
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/AS1C02_008T01_9000000884_06583cztM0_level2.evt modeM0/AS1C02_008T01_9000000884_06583cztM0_level2_quad_clean.evt
Size (bytes)452,160,00090,757,440
Size431.2 MB 86.6 MB
Events in quadrant A3,169,657581,707
Events in quadrant B3,402,450586,769
Events in quadrant C3,054,171566,532
Events in quadrant D3,608,029542,382

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139713
B0145702
C0138002
D0155472

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6755520.769800%
B6755751.110289%
C6755320.473723%
D67551822.694301%

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 7940 6756 0 0 0.00% 0.00%
B 7940 6756 20 20 0.25% 0.30%
C 7940 6756 1 1 0.01% 0.01%
D 7940 6756 125 125 1.57% 1.85%

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 8 15 37889 227.15 804 788 163.3
A 15 234 29580 176.27 804 788 163.3
A 0 226 7736 42.54 804 788 163.3
B 0 219 92106 587.07 808 790 155.5
B 4 81 52090 329.81 808 790 155.5
B 4 172 43193 272.61 808 790 155.5
C 9 54 20898 111.53 777 782 180.4
C 13 61 6152 29.77 777 782 180.4
C 12 4 2519 9.63 777 782 180.4
D 2 33 424905 2208.74 774 748 192.0
D 2 152 176332 914.33 774 748 192.0
D 2 136 30034 152.5 774 748 192.0

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