ASTROSAT CZTI

Data Quality Report

Orbit 39088

Creation date: 2024-06-27T22:00:16.927751
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_067T01_9000005432_39088cztM0_level2.fits modeM0/AS1T05_067T01_9000005432_39088cztM0_level2_quad_clean.evt
Size (bytes)374,996,16087,687,360
Size357.6 MB 83.6 MB
Events in quadrant A2,758,187604,853
Events in quadrant B2,407,274616,873
Events in quadrant C5,183,411530,399
Events in quadrant D3,121,668533,420

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115043
B0107762
C0190172
D0128832

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5276180.341168%
B5276110.208491%
C527656910.784685%
D5276781.478393%

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 6980 5277 14 14 0.20% 0.27%
B 6980 5277 4 4 0.06% 0.08%
C 6980 5277 583 583 8.35% 11.05%
D 6980 5277 74 74 1.06% 1.40%

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 404801 3403.57 585 575 118.8
A 7 3 61943 516.72 585 575 118.8
A 15 223 18722 152.8 585 575 118.8
B 5 184 44092 382.1 583 567 113.9
B 5 172 42280 366.2 583 567 113.9
B 0 230 19463 165.89 583 567 113.9
C 15 208 2774793 21468.32 552 557 129.2
C 15 214 217487 1678.7 552 557 129.2
C 15 159 16124 120.46 552 557 129.2
D 12 235 295844 2141.67 564 547 137.9
D 2 249 201319 1456.12 564 547 137.9
D 12 227 129256 933.47 564 547 137.9

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