ASTROSAT CZTI

Data Quality Report

Orbit 34045

Creation date: 2024-06-27T20:55:49.303366
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/AS1A06_003T04_9000004866_34045cztM0_level2.evt modeM0/AS1A06_003T04_9000004866_34045cztM0_level2_quad_clean.evt
Size (bytes)663,552,00056,304,000
Size632.8 MB 53.7 MB
Events in quadrant A3,173,265362,740
Events in quadrant B8,903,129298,325
Events in quadrant C3,240,119354,344
Events in quadrant D4,427,509323,763

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125363
B0301062
C0129382
D0168472

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5207981.882082%
B5207247447.512963%
C5207601.152295%
D52073276.280008%

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 7241 5208 87 87 1.20% 1.67%
B 7241 5207 2192 2192 30.27% 42.10%
C 7241 5208 48 48 0.66% 0.92%
D 7241 5208 323 323 4.46% 6.20%

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 15 169 484579 3549.72 690 680 136.3
A 10 83 17590 124.05 690 680 136.3
A 13 6 10557 72.45 690 680 136.3
B 5 31 3910614 34975.17 604 592 111.8
B 5 15 1650155 14755.35 604 592 111.8
B 5 172 487320 4353.78 604 592 111.8
C 15 214 246240 1623.34 663 670 151.3
C 0 10 242837 1600.85 663 670 151.3
C 3 233 83854 549.89 663 670 151.3
D 8 195 599900 3829.75 647 631 156.5
D 2 250 536638 3425.46 647 631 156.5
D 2 249 303794 1937.42 647 631 156.5

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