ASTROSAT CZTI

Data Quality Report

Orbit 29973

Creation date: 2024-06-27T20:09:23.670897
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/AS1A10_053T11_9000004302_29973cztM0_level2.evt modeM0/AS1A10_053T11_9000004302_29973cztM0_level2_quad_clean.evt
Size (bytes)503,527,68089,994,240
Size480.2 MB 85.8 MB
Events in quadrant A3,059,126581,179
Events in quadrant B5,192,183576,628
Events in quadrant C3,252,364566,763
Events in quadrant D3,316,547558,926

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130161
B0197441
C0133281
D0136691

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6332210.331649%
B6333841.326386%
C6333861.357966%
D6333470.742144%

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 7337 6333 0 0 0.00% 0.00%
B 7338 6334 4 4 0.05% 0.06%
C 7338 6334 0 0 0.00% 0.00%
D 7338 6334 23 23 0.31% 0.36%

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 8 192 14015 83.94 787 770 157.8
A 13 254 11450 67.68 787 770 157.8
A 3 137 7703 43.94 787 770 157.8
B 6 159 1853216 12358.12 778 758 149.9
B 6 36 267304 1778.18 778 758 149.9
B 12 111 17926 114.53 778 758 149.9
C 3 233 141241 782.52 763 769 179.5
C 14 238 122685 679.15 763 769 179.5
C 2 114 14994 79.24 763 769 179.5
D 8 195 227435 1248.2 769 750 181.6
D 2 250 108318 592.3 769 750 181.6
D 12 233 37357 201.57 769 750 181.6

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