ASTROSAT CZTI

Data Quality Report

Orbit 03459

Creation date: 2024-06-27T14:29:20.568974
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/AS1G05_209T01_9000000458_03459cztM0_level2.evt modeM0/AS1G05_209T01_9000000458_03459cztM0_level2_quad_clean.evt
Size (bytes)202,345,92055,471,680
Size193.0 MB 52.9 MB
Events in quadrant A1,403,767364,954
Events in quadrant B1,556,452374,087
Events in quadrant C1,586,496373,513
Events in quadrant D1,379,934357,978

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061582
B066031
C066691
D062181

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2935401.362862%
B2935280.954003%
C2935642.180579%
D2935170.579216%

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 4290 2936 12 12 0.28% 0.41%
B 4290 2936 3 3 0.07% 0.10%
C 4290 2936 43 43 1.00% 1.46%
D 4290 2936 3 3 0.07% 0.10%

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 0 118 41443 562.97 351 343 73.0
A 0 226 7501 98.05 351 343 73.0
A 12 194 3774 47.0 351 343 73.0
B 15 204 112640 1624.04 360 351 69.1
B 0 229 21960 312.53 360 351 69.1
B 4 81 21683 308.53 360 351 69.1
C 1 192 165812 2082.39 346 347 79.5
C 14 234 27277 338.91 346 347 79.5
C 9 144 18969 234.35 346 347 79.5
D 10 172 53180 636.11 345 335 83.1
D 2 37 8802 101.92 345 335 83.1
D 10 34 4769 53.37 345 335 83.1

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