ASTROSAT CZTI

Data Quality Report

Orbit 47734

Creation date: 2024-07-26T11:16:03.892786
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/AS1T05_213T01_9000006344_47734cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47734cztM0_level2_quad_clean.evt
Size (bytes)443,854,080108,601,920
Size423.3 MB 103.6 MB
Events in quadrant A6,659,907709,114
Events in quadrant B3,019,606745,185
Events in quadrant C3,078,571720,732
Events in quadrant D3,167,513659,781

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0246061
B0134811
C0136931
D0140201

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64981862.862419%
B6498540.831025%
C6498560.861804%
D6499560.861671%

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 7578 6499 42 42 0.55% 0.65%
B 7578 6499 2 2 0.03% 0.03%
C 7578 6499 5 5 0.07% 0.08%
D 7579 6500 19 19 0.25% 0.29%

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 3750700 25295.5 720 703 148.2
A 9 191 66912 446.61 720 703 148.2
A 13 248 46527 309.1 720 703 148.2
B 5 32 83289 581.01 725 703 142.1
B 0 200 51365 356.42 725 703 142.1
B 12 111 17893 120.94 725 703 142.1
C 14 254 243632 1428.04 724 730 170.1
C 0 207 11638 64.13 724 730 170.1
C 13 61 4719 23.45 724 730 170.1
D 10 181 158395 874.92 723 701 180.2
D 7 204 113112 623.68 723 701 180.2
D 2 249 65912 361.8 723 701 180.2

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