ASTROSAT CZTI

Data Quality Report

Orbit 19646

Creation date: 2024-06-27T18:05:10.546991
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/AS1A05_101T10_9000002924_19646cztM0_level2.evt modeM0/AS1A05_101T10_9000002924_19646cztM0_level2_quad_clean.evt
Size (bytes)241,738,56060,949,440
Size230.5 MB 58.1 MB
Events in quadrant A1,504,044407,851
Events in quadrant B1,682,871410,293
Events in quadrant C1,447,695404,871
Events in quadrant D2,454,245382,011

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069440
B073390
C067840
D096630

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A338780.236197%
B3388180.531287%
C338870.206612%
D33883219.474616%

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 3387 3387 7 7 0.21% 0.21%
B 3388 3388 16 16 0.47% 0.47%
C 3388 3388 0 0 0.00% 0.00%
D 3388 3388 328 328 9.68% 9.68%

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 5 16 57863 760.91 371 363 75.6
A 9 143 14464 186.6 371 363 75.6
A 0 226 3256 38.28 371 363 75.6
B 3 112 164435 2331.77 367 357 70.4
B 7 220 22913 320.54 367 357 70.4
B 0 230 15100 209.51 367 357 70.4
C 14 238 56232 668.77 354 355 83.6
C 9 221 6106 68.83 354 355 83.6
C 3 233 4480 49.37 354 355 83.6
D 1 20 773248 8998.65 348 337 85.9
D 1 52 246521 2866.21 348 337 85.9
D 13 172 43795 505.96 348 337 85.9

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