ASTROSAT CZTI

Data Quality Report

Orbit 11198

Creation date: 2024-06-27T16:09:37.591687
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/AS1A04_171T01_9000001634_11198cztM0_level2.evt modeM0/AS1A04_171T01_9000001634_11198cztM0_level2_quad_clean.evt
Size (bytes)554,976,00096,140,160
Size529.3 MB 91.7 MB
Events in quadrant A4,780,202612,642
Events in quadrant B4,427,602620,628
Events in quadrant C2,984,190620,909
Events in quadrant D4,157,067585,791

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0187973
B0176522
C0137402
D0169262

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67603985.887574%
B67603755.547337%
C6760130.192308%
D67611041.538234%

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 7755 6761 292 292 3.77% 4.32%
B 7755 6761 213 213 2.75% 3.15%
C 7755 6761 0 0 0.00% 0.00%
D 7756 6762 61 61 0.79% 0.90%

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 15 239 1309922 8250.31 778 762 158.7
A 8 5 306232 1925.07 778 762 158.7
A 8 15 138296 866.74 778 762 158.7
B 4 239 1221215 8029.25 786 767 152.0
B 15 204 59337 385.33 786 767 152.0
B 11 51 55294 358.73 786 767 152.0
C 13 61 5528 26.59 764 768 179.0
C 12 4 4620 21.52 764 768 179.0
C 3 202 1918 6.43 764 768 179.0
D 13 152 418864 2313.05 752 731 180.8
D 1 52 389307 2149.54 752 731 180.8
D 8 195 168054 925.6 752 731 180.8

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