ASTROSAT CZTI

Data Quality Report

Orbit 20240308_A13_093T12_9000006118_level2

Creation date: 2024-03-12T10:33:03.210150
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_093T12_9000006118cztM0_level2.fits modeM0/AS1A13_093T12_9000006118cztM0_level2_quad_clean.evt
Size (bytes)589,991,040695,424,960
Size562.7 MB 663.2 MB
Events in quadrant A3,457,6964,233,832
Events in quadrant B3,354,5824,299,119
Events in quadrant C3,512,2504,204,257
Events in quadrant D2,985,0883,768,821

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02125410
B01507330
C01454650
D01650290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013500
B013500
C013500
D013500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0810
B0810
C0810
D0810

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6644615162.281552%
B6644616492.481714%
C664469221.387593%
D6644620573.095747%

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 74427 66439 0 0 0.00% 0.00%
B 74427 66424 0 0 0.00% 0.00%
C 74427 66434 0 0 0.00% 0.00%
D 74427 66430 0 0 0.00% 0.00%

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 7 110 2844 8.71 903 844 229.5
A 0 29 2607 7.68 903 844 229.5
A 15 236 2584 7.58 903 844 229.5
B 2 9 3119 13.03 890 847 174.4
B 2 8 2472 9.32 890 847 174.4
B 3 17 2419 9.01 890 847 174.4
C 3 202 2730 7.84 927 865 237.9
C 1 81 2711 7.76 927 865 237.9
C 1 80 2599 7.29 927 865 237.9
D 10 189 2294 6.36 858 778 238.3
D 12 6 2155 5.78 858 778 238.3
D 1 31 2120 5.63 858 778 238.3

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