ASTROSAT CZTI

Data Quality Report

Orbit 48078

Creation date: 2024-08-19T11:18:42.839519
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_073T04_9000006396_48078cztM0_level2.fits modeM0/AS1A13_073T04_9000006396_48078cztM0_level2_quad_clean.evt
Size (bytes)612,835,200120,718,080
Size584.4 MB 115.1 MB
Events in quadrant A9,445,6481,029,116
Events in quadrant B1,775,505561
Events in quadrant C4,319,5911,013,121
Events in quadrant D6,357,252919,345

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03529110
B0109061
C0206201
D0262216

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02000
B02000
C02000
D02000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A99933193.192235%
B9996999199.949980%
C9996870.870348%
D99942992.991795%

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 10011 9996 0 0 0.00% 0.00%
B 10010 9995 0 0 0.00% 0.00%
C 10011 9997 10 10 0.10% 0.10%
D 10011 9996 213 213 2.13% 2.13%

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 10 83 5194470 22756.51 1094 1068 228.2
A 13 254 18239 75.24 1094 1068 228.2
A 3 137 13371 53.91 1094 1068 228.2
B 2 177 1376865 85287.06 71 69 16.1
B 4 21 106484 6591.99 71 69 16.1
B 4 171 3720 226.16 71 69 16.1
C 14 254 102711 398.66 1075 1080 254.9
C 15 208 16315 59.76 1075 1080 254.9
C 13 61 7164 23.87 1075 1080 254.9
D 2 249 1094170 4047.43 1071 1036 270.1
D 2 165 963091 3562.1 1071 1036 270.1
D 11 224 78712 287.6 1071 1036 270.1

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