ASTROSAT CZTI

Data Quality Report

Orbit 48083

Creation date: 2024-08-20T12:26:14.661871
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_48083cztM0_level2.fits modeM0/AS1A13_071T07_9000006398_48083cztM0_level2_quad_clean.evt
Size (bytes)413,547,84083,865,600
Size394.4 MB 80.0 MB
Events in quadrant A7,009,119710,576
Events in quadrant B1,132,28545,094
Events in quadrant C2,910,140703,716
Events in quadrant D3,753,270631,707

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250435
B069212
C0133552
D0159112

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63793795.941370%
B63796379100.000000%
C6379210.329205%
D63793375.282960%

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 7534 6380 123 123 1.63% 1.93%
B 7533 6378 1 1 0.01% 0.02%
C 7534 6379 15 15 0.20% 0.24%
D 7534 6380 291 291 3.86% 4.56%

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 4205874 28912.78 698 684 145.4
A 13 248 62365 424.09 698 684 145.4
A 10 255 17884 118.26 698 684 145.4
B 2 177 879550 78000.65 45 44 11.3
B 4 21 52409 4644.09 45 44 11.3
B 5 255 6035 531.32 45 44 11.3
C 14 254 109395 678.89 688 691 160.1
C 12 250 52710 324.87 688 691 160.1
C 11 16 28121 171.31 688 691 160.1
D 2 37 859167 5063.19 672 648 169.6
D 2 249 103012 603.7 672 648 169.6
D 14 34 53073 309.18 672 648 169.6

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