ASTROSAT CZTI

Data Quality Report

Orbit 09533

Creation date: 2024-06-27T15:47:22.376431
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/AS1G07_049T01_9000001352_09533cztM0_level2.evt modeM0/AS1G07_049T01_9000001352_09533cztM0_level2_quad_clean.evt
Size (bytes)457,712,640123,019,200
Size436.5 MB 117.3 MB
Events in quadrant A3,442,722823,226
Events in quadrant B3,186,259829,365
Events in quadrant C3,290,694815,502
Events in quadrant D3,491,210795,268

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01461563
B01376838
C01440362
D01492585

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01346
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6641660.993826%
B6651681.022403%
C66411131.701551%
D6638841.265441%

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 7639 6670 1 1 0.01% 0.01%
B 7639 6670 9 9 0.12% 0.13%
C 7639 6666 38 38 0.50% 0.57%
D 7639 6668 29 29 0.38% 0.43%

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 1 162 199667 1254.52 776 760 158.6
A 1 178 91423 571.82 776 760 158.6
A 1 161 86911 543.36 776 760 158.6
B 0 214 74608 499.95 779 759 147.7
B 0 187 24203 158.71 779 759 147.7
B 4 80 18335 118.99 779 759 147.7
C 4 254 284291 1613.31 758 761 175.7
C 14 234 25133 138.68 758 761 175.7
C 8 128 11754 62.55 758 761 175.7
D 1 52 299940 1617.59 750 727 185.0
D 8 195 102350 549.39 750 727 185.0
D 13 104 86463 463.5 750 727 185.0

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