ASTROSAT CZTI

Data Quality Report

Orbit 47850

Creation date: 2024-08-03T09:05:47.999942
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/AS1T05_216T01_9000006356_47850cztM0_level2.fits modeM0/AS1T05_216T01_9000006356_47850cztM0_level2_quad_clean.evt
Size (bytes)73,154,8807,796,160
Size69.8 MB 7.4 MB
Events in quadrant A788,12656,421
Events in quadrant B286,58967,531
Events in quadrant C270,79364,513
Events in quadrant D1,318,1293,312

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A027061
B011791
C011321
D042801

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5299117.202268%
B52950.945180%
C52920.378072%
D52950194.706994%

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 529 529 62 62 11.72% 11.72%
B 529 529 0 0 0.00% 0.00%
C 529 529 1 1 0.19% 0.19%
D 528 528 495 495 93.75% 93.75%

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 541319 35594.63 63 61 15.2
A 13 248 1807 114.82 63 61 15.2
A 0 243 902 55.31 63 61 15.2
B 4 21 17853 1167.28 66 64 15.2
B 5 255 3118 200.4 66 64 15.2
B 12 111 1619 102.04 66 64 15.2
C 14 254 8219 466.07 65 66 17.5
C 3 233 3416 191.5 65 66 17.5
C 1 3 1630 89.41 65 66 17.5
D 2 37 754466 91294.13 26 25 8.3
D 2 165 446030 53970.61 26 25 8.3
D 12 2 5194 625.5 26 25 8.3

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