ASTROSAT CZTI

Data Quality Report

Orbit 42773

Creation date: 2024-06-27T22:44:03.794522
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_013T01_9000005822_42773cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42773cztM0_level2_quad_clean.evt
Size (bytes)310,757,76091,630,080
Size296.4 MB 87.4 MB
Events in quadrant A2,975,890613,680
Events in quadrant B2,508,254605,832
Events in quadrant C2,892,226607,479
Events in quadrant D2,699,718563,776

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120852
B0113391
C0122081
D0119771

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5482130.237140%
B5482310.565487%
C5482130.237140%
D5482280.510762%

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 7065 5483 3 3 0.04% 0.05%
B 7065 5483 24 24 0.34% 0.44%
C 7065 5483 8 8 0.11% 0.15%
D 7065 5483 29 29 0.41% 0.53%

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 561576 4508.06 603 590 124.4
A 13 248 30392 239.49 603 590 124.4
A 13 6 19078 148.57 603 590 124.4
B 15 35 72560 613.14 596 579 117.4
B 5 172 42240 354.87 596 579 117.4
B 0 230 27406 228.52 596 579 117.4
C 10 34 252977 1845.42 586 591 136.8
C 15 214 226386 1650.99 586 591 136.8
C 14 254 79251 575.15 586 591 136.8
D 12 233 234316 1599.07 588 571 146.2
D 5 70 42397 286.14 588 571 146.2
D 1 52 36416 245.22 588 571 146.2

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