ASTROSAT CZTI

Data Quality Report

Orbit 43047

Creation date: 2024-06-27T22:47:19.317635
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/AS1T05_148T01_9000005838_43047cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43047cztM0_level2_quad_clean.evt
Size (bytes)857,090,880188,366,400
Size817.4 MB 179.6 MB
Events in quadrant A6,367,0221,366,613
Events in quadrant B10,665,6721,097,197
Events in quadrant C5,273,9811,330,018
Events in quadrant D8,588,5671,165,891

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0360
C0360
D0360

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02200
B02200
C02200
D02200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259453
B0391093
C0218713
D0330523

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10738860.800894%
B10738228121.242317%
C1073850.046564%
D107384664.339728%

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 13452 10740 50 50 0.37% 0.47%
B 13452 10740 1785 1785 13.27% 16.62%
C 13452 10740 0 0 0.00% 0.00%
D 13452 10740 403 403 3.00% 3.75%

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 1082664 4094.54 1254 1235 264.1
A 15 237 224731 846.21 1254 1235 264.1
A 12 189 155366 583.58 1254 1235 264.1
B 0 186 4268646 19026.93 1132 1106 224.3
B 0 229 1691617 7537.18 1132 1106 224.3
B 4 171 80635 354.58 1132 1106 224.3
C 15 214 473063 1603.69 1220 1233 294.2
C 14 254 24518 79.14 1220 1233 294.2
C 7 220 13153 40.51 1220 1233 294.2
D 1 52 1975473 6471.03 1193 1156 305.1
D 2 16 1222662 4003.61 1193 1156 305.1
D 13 249 457622 1496.12 1193 1156 305.1

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