ASTROSAT CZTI

Data Quality Report

Orbit 47868

Creation date: 2024-08-04T12:34:07.592015
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/AS1A09_038T20_9000006366_47868cztM0_level2.fits modeM0/AS1A09_038T20_9000006366_47868cztM0_level2_quad_clean.evt
Size (bytes)255,867,84063,734,400
Size244.0 MB 60.8 MB
Events in quadrant A3,601,547417,570
Events in quadrant B1,650,054432,592
Events in quadrant C1,614,614424,491
Events in quadrant D2,304,134383,377

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134640
B077630
C077460
D094410

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3854100.259471%
B385540.103761%
C385500.000000%
D3855230.596628%

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 3854 3854 1 1 0.03% 0.03%
B 3855 3855 2 2 0.05% 0.05%
C 3855 3855 0 0 0.00% 0.00%
D 3855 3855 20 20 0.52% 0.52%

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 2028387 23963.18 405 398 84.6
A 13 248 6415 71.1 405 398 84.6
A 3 137 4630 50.01 405 398 84.6
B 0 198 14623 180.84 405 393 78.7
B 0 197 14292 176.63 405 393 78.7
B 12 111 9724 118.58 405 393 78.7
C 14 67 12909 130.79 405 407 95.6
C 12 2 10871 109.47 405 407 95.6
C 3 233 4471 42.52 405 407 95.6
D 2 165 522129 5183.04 403 390 100.7
D 5 32 108953 1078.48 403 390 100.7
D 12 233 37341 367.08 403 390 100.7

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