ASTROSAT CZTI

Data Quality Report

Orbit 39210

Creation date: 2024-06-27T22:01:50.384257
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/AS1A12_054T04_9000005446_39210cztM0_level2.fits modeM0/AS1A12_054T04_9000005446_39210cztM0_level2_quad_clean.evt
Size (bytes)452,139,84088,948,800
Size431.2 MB 84.8 MB
Events in quadrant A2,791,418630,265
Events in quadrant B2,913,760628,924
Events in quadrant C2,536,038608,599
Events in quadrant D8,057,348431,608

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118953
B0125682
C0113792
D0278142

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A563190.159830%
B56311242.202096%
C563150.088794%
D5631161328.645001%

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 7274 5632 3 3 0.04% 0.05%
B 7274 5632 66 66 0.91% 1.17%
C 7274 5632 0 0 0.00% 0.00%
D 7274 5632 1409 1409 19.37% 25.02%

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 435535 3505.88 606 593 124.1
A 13 254 7206 53.3 606 593 124.1
A 3 137 6558 48.08 606 593 124.1
B 5 184 355269 3078.1 598 582 115.2
B 5 172 160489 1387.73 598 582 115.2
B 0 190 36908 315.25 598 582 115.2
C 15 214 234562 1704.91 585 587 137.2
C 3 233 18481 130.39 585 587 137.2
C 13 61 3989 24.79 585 587 137.2
D 12 235 5612413 44399.8 519 503 126.4
D 2 153 185964 1467.31 519 503 126.4
D 2 249 101422 798.44 519 503 126.4

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