ASTROSAT CZTI

Data Quality Report

Orbit 10271

Creation date: 2024-06-27T15:57:16.611272
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_021T01_9000001482_10271cztM0_level2.evt modeM0/AS1C02_021T01_9000001482_10271cztM0_level2_quad_clean.evt
Size (bytes)462,614,40084,240,000
Size441.2 MB 80.3 MB
Events in quadrant A3,094,753524,409
Events in quadrant B3,514,996530,496
Events in quadrant C2,949,269525,181
Events in quadrant D3,988,349496,076

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140207
B0150654
C0137302
D0165735

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6805440.646583%
B6806971.425213%
C6807130.190980%
D68062794.099324%

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 7732 6808 15 15 0.19% 0.22%
B 7732 6808 39 39 0.50% 0.57%
C 7732 6808 0 0 0.00% 0.00%
D 7732 6808 257 257 3.32% 3.77%

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 14 238 92926 592.58 770 754 155.5
A 8 15 14816 90.41 770 754 155.5
A 3 1 11843 71.29 770 754 155.5
B 4 239 390825 2653.7 774 756 147.0
B 11 51 56226 377.37 774 756 147.0
B 0 214 35183 234.21 774 756 147.0
C 13 61 5721 28.45 754 756 174.5
C 14 67 4407 20.92 754 756 174.5
C 8 222 2035 7.33 754 756 174.5
D 1 52 851703 4840.64 733 711 175.8
D 8 195 142023 803.82 733 711 175.8
D 2 14 79907 450.49 733 711 175.8

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