ASTROSAT CZTI

Data Quality Report

Orbit 19025

Creation date: 2024-06-27T17:58:13.499105
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/AS1A06_003T05_9000002830_19025cztM0_level2.evt modeM0/AS1A06_003T05_9000002830_19025cztM0_level2_quad_clean.evt
Size (bytes)666,155,52094,357,440
Size635.3 MB 90.0 MB
Events in quadrant A4,151,392597,733
Events in quadrant B4,571,994598,531
Events in quadrant C4,218,921573,476
Events in quadrant D6,656,079497,447

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01720
D01720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0179052
B0189502
C0179122
D0253522

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A84904144.876325%
B84905015.901060%
C84914174.911082%
D8491112013.190437%

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 8770 8493 6 6 0.07% 0.07%
B 8770 8493 55 55 0.63% 0.65%
C 8771 8494 0 0 0.00% 0.00%
D 8770 8493 693 693 7.90% 8.16%

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 14 235 45591 206.39 1063 1038 215.9
A 9 143 9755 40.38 1063 1038 215.9
A 0 226 9331 38.42 1063 1038 215.9
B 3 112 203673 990.86 1051 1021 204.5
B 7 220 137459 667.11 1051 1021 204.5
B 3 64 36576 173.84 1051 1021 204.5
C 14 238 156155 651.47 1014 1017 238.1
C 3 233 83951 348.26 1014 1017 238.1
C 8 128 12586 48.58 1014 1017 238.1
D 1 52 2145977 9002.92 974 941 238.3
D 7 238 773093 3240.79 974 941 238.3
D 2 234 36070 147.44 974 941 238.3

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