ASTROSAT CZTI

Data Quality Report

Orbit 39514

Creation date: 2024-06-27T22:05:32.677257
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_018T01_9000005488_39514cztM0_level2.fits modeM0/AS1A12_018T01_9000005488_39514cztM0_level2_quad_clean.evt
Size (bytes)445,602,24089,337,600
Size425.0 MB 85.2 MB
Events in quadrant A2,926,543636,968
Events in quadrant B2,465,304652,249
Events in quadrant C7,469,703451,190
Events in quadrant D3,186,418563,549

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123653
B0115172
C0259732
D0136322

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5739160.278794%
B573950.087123%
C5739169029.447639%
D57391182.056107%

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 7382 5740 2 2 0.03% 0.03%
B 7382 5740 0 0 0.00% 0.00%
C 7382 5740 1585 1585 21.47% 27.61%
D 7382 5740 102 102 1.38% 1.78%

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 463203 3586.34 627 614 129.0
A 15 222 17831 133.48 627 614 129.0
A 6 10 13059 96.48 627 614 129.0
B 12 111 15132 120.79 622 604 120.3
B 0 214 14720 117.37 622 604 120.3
B 11 111 14136 112.51 622 604 120.3
C 9 187 4299996 34345.49 537 542 125.2
C 15 208 832423 6645.35 537 542 125.2
C 15 214 213667 1702.51 537 542 125.2
D 2 249 468490 3158.64 609 591 148.1
D 13 249 136434 917.03 609 591 148.1
D 12 227 86240 578.19 609 591 148.1

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