ASTROSAT CZTI

Data Quality Report

Orbit 40429

Creation date: 2024-06-27T22:15:59.932770
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_022T01_9000005540_40429cztM0_level2.fits modeM0/AS1A12_022T01_9000005540_40429cztM0_level2_quad_clean.evt
Size (bytes)359,449,92091,198,080
Size342.8 MB 87.0 MB
Events in quadrant A2,960,587633,232
Events in quadrant B2,866,633651,044
Events in quadrant C2,567,802612,061
Events in quadrant D4,486,484484,479

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120713
B0117832
C0109982
D0168662

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5441140.257306%
B5441180.330822%
C544150.091895%
D544190216.577835%

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 7294 5442 6 6 0.08% 0.11%
B 7294 5442 5 5 0.07% 0.09%
C 7294 5442 1 1 0.01% 0.02%
D 7294 5442 510 510 6.99% 9.37%

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 474007 3792.47 614 602 124.8
A 13 248 114420 911.8 614 602 124.8
A 3 137 6599 48.04 614 602 124.8
B 3 112 197867 1689.52 605 589 116.8
B 0 230 178604 1524.55 605 589 116.8
B 4 170 82469 701.23 605 589 116.8
C 15 214 242367 1763.02 588 591 137.1
C 5 250 13294 92.63 588 591 137.1
C 14 254 8730 59.35 588 591 137.1
D 12 227 2036561 15507.23 536 523 131.3
D 12 191 141931 1077.02 536 523 131.3
D 12 128 96457 730.67 536 523 131.3

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