ASTROSAT CZTI

Data Quality Report

Orbit 20240619_A13_019T01_9000006302_level2

Creation date: 2024-06-24T16:01:34.342528
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_019T01_9000006302cztM0_level2.fits modeM0/AS1A13_019T01_9000006302cztM0_level2_quad_clean.evt
Size (bytes)1,089,247,6801,068,292,800
Size1.0 GB 1018.8 MB
Events in quadrant A5,997,9765,309,333
Events in quadrant B6,357,8426,691,222
Events in quadrant C6,627,8526,474,925
Events in quadrant D5,533,1545,424,257

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06007460
B03001480
C02605950
D03771180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A023040
B024120
C024120
D024120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01850
B01850
C01850
D01850

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1237542839922.947945%
B12375750784.103202%
C12376312230.988179%
D12375995537.719035%

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 142379 123704 0 0 0.00% 0.00%
B 142380 123719 0 0 0.00% 0.00%
C 142379 123758 0 0 0.00% 0.00%
D 142380 123754 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 4935 8.74 1565 1455 398.4
A 0 29 4496 7.63 1565 1455 398.4
A 14 95 4426 7.46 1565 1455 398.4
B 2 9 5852 12.94 1682 1597 328.8
B 2 8 4683 9.39 1682 1597 328.8
B 3 17 4450 8.68 1682 1597 328.8
C 1 81 4967 7.34 1754 1628 455.1
C 3 202 4896 7.18 1754 1628 455.1
C 3 203 4881 7.15 1754 1628 455.1
D 10 189 4020 5.82 1591 1440 443.7
D 6 67 4012 5.8 1591 1440 443.7
D 12 6 4007 5.79 1591 1440 443.7

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