ASTROSAT CZTI

Data Quality Report

Orbit 33362

Creation date: 2024-06-27T20:47:52.847195
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/AS1A10_058T15_9000004786_33362cztM0_level2.evt modeM0/AS1A10_058T15_9000004786_33362cztM0_level2_quad_clean.evt
Size (bytes)507,260,16054,486,720
Size483.8 MB 52.0 MB
Events in quadrant A3,886,271315,912
Events in quadrant B3,561,824316,765
Events in quadrant C3,077,150322,117
Events in quadrant D4,460,034305,300

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151533
B0141002
C0122202
D0170162

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A55621913.434017%
B55622274.081266%
C5562420.755124%
D55622644.746494%

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 8907 5563 136 136 1.53% 2.44%
B 8907 5564 75 75 0.84% 1.35%
C 8907 5564 28 28 0.31% 0.50%
D 8907 5564 222 222 2.49% 3.99%

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 1264975 9440.13 670 657 133.9
A 8 205 29212 213.21 670 657 133.9
A 13 254 7731 52.82 670 657 133.9
B 0 219 482799 3738.76 671 653 129.0
B 5 172 208627 1612.72 671 653 129.0
B 5 200 86115 662.71 671 653 129.0
C 15 214 242351 1593.15 657 660 151.7
C 0 10 112212 735.32 657 660 151.7
C 1 23 76752 501.57 657 660 151.7
D 8 195 553167 3503.46 645 626 157.7
D 13 249 489524 3099.92 645 626 157.7
D 2 120 239656 1515.6 645 626 157.7

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