ASTROSAT CZTI

Data Quality Report

Orbit 11015

Creation date: 2024-06-27T16:07:02.244783
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/AS1C03_004T01_9000001598_11015cztM0_level2.evt modeM0/AS1C03_004T01_9000001598_11015cztM0_level2_quad_clean.evt
Size (bytes)334,592,64051,082,560
Size319.1 MB 48.7 MB
Events in quadrant A3,975,445292,622
Events in quadrant B1,891,570346,053
Events in quadrant C1,640,565350,568
Events in quadrant D2,402,861325,566

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041
B040
C040
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153301294
B08093451
C07330390
D010105718

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0706
B0708
C0702
D0704

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A319773422.959024%
B3304762.300242%
C330150.151469%
D3245471.448382%

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 3482 3410 564 564 16.20% 16.54%
B 3482 3453 38 38 1.09% 1.10%
C 3482 3449 0 0 0.00% 0.00%
D 3482 3438 36 36 1.03% 1.05%

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 14 238 2022034 27041.72 373 367 74.8
A 8 5 406997 5439.06 373 367 74.8
A 15 174 88617 1180.43 373 367 74.8
B 4 239 227161 2970.77 415 406 76.3
B 15 204 11072 139.74 415 406 76.3
B 0 214 10493 132.15 415 406 76.3
C 8 128 7594 75.64 416 419 94.9
C 8 112 5229 50.71 416 419 94.9
C 13 61 3058 27.82 416 419 94.9
D 1 52 377040 3931.63 404 393 95.8
D 11 129 264067 2752.36 404 393 95.8
D 8 195 58058 601.94 404 393 95.8

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