ASTROSAT CZTI

Data Quality Report

Orbit 47984

Creation date: 2024-08-12T08:21:46.469178
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_062T02_9000006384_47984cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_47984cztM0_level2_quad_clean.evt
Size (bytes)477,383,040108,218,880
Size455.3 MB 103.2 MB
Events in quadrant A7,435,974674,063
Events in quadrant B2,974,702767,391
Events in quadrant C3,300,815727,765
Events in quadrant D3,457,127656,252

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0265742
B0133602
C0143842
D0149522

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64746429.916589%
B6474470.725981%
C6474921.421069%
D64741221.884461%

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 7649 6474 402 402 5.26% 6.21%
B 7649 6475 0 0 0.00% 0.00%
C 7649 6474 68 68 0.89% 1.05%
D 7649 6475 83 83 1.09% 1.28%

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 3879690 26575.89 708 696 146.0
A 0 31 795030 5442.17 708 696 146.0
A 10 255 11835 76.32 708 696 146.0
B 5 255 23516 157.17 734 712 145.1
B 0 198 22796 152.2 734 712 145.1
B 12 111 18145 120.15 734 712 145.1
C 14 254 248314 1450.94 727 734 170.6
C 15 208 158614 925.26 727 734 170.6
C 1 3 34652 198.78 727 734 170.6
D 2 249 253636 1396.06 721 699 181.2
D 13 29 130971 719.02 721 699 181.2
D 2 120 81397 445.4 721 699 181.2

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