ASTROSAT CZTI

Data Quality Report

Orbit 46243

Creation date: 2024-06-27T23:20:45.692008
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_094T02_9000006190_46243cztM0_level2.fits modeM0/AS1A13_094T02_9000006190_46243cztM0_level2_quad_clean.evt
Size (bytes)250,534,08052,652,160
Size238.9 MB 50.2 MB
Events in quadrant A3,186,471339,880
Events in quadrant B2,187,939360,160
Events in quadrant C1,521,308352,222
Events in quadrant D2,133,337318,890

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117991
B086981
C067362
D085271

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A31342156.860243%
B31341334.243778%
C3133682.170444%
D31331324.213214%

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 4284 3134 22 22 0.51% 0.70%
B 4284 3134 13 13 0.30% 0.41%
C 4283 3133 8 8 0.19% 0.26%
D 4283 3133 72 72 1.68% 2.30%

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 1618993 21326.62 358 350 75.9
A 0 247 152333 2002.47 358 350 75.9
A 0 226 10973 139.96 358 350 75.9
B 3 112 565249 8005.64 360 350 70.6
B 4 171 117957 1666.7 360 350 70.6
B 5 32 54960 773.92 360 350 70.6
C 12 2 64035 755.0 358 358 84.3
C 2 14 33127 388.53 358 358 84.3
C 3 9 17475 202.95 358 358 84.3
D 12 1 312254 3500.82 355 343 89.1
D 5 235 242967 2723.15 355 343 89.1
D 3 13 98282 1099.24 355 343 89.1

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