ASTROSAT CZTI

Data Quality Report

Orbit 33414

Creation date: 2024-06-27T20:48:35.127023
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/AS1C07_001T03_9000004790_33414cztM0_level2.evt modeM0/AS1C07_001T03_9000004790_33414cztM0_level2_quad_clean.evt
Size (bytes)558,815,04086,650,560
Size532.9 MB 82.6 MB
Events in quadrant A2,651,081589,613
Events in quadrant B4,805,938545,989
Events in quadrant C3,082,160563,559
Events in quadrant D5,984,951512,376

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118592
B0180601
C0125571
D0218601

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A590540.067739%
B590573112.379340%
C5905280.474174%
D59055809.822185%

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 7218 5906 0 0 0.00% 0.00%
B 7218 5906 605 605 8.38% 10.24%
C 7218 5906 19 19 0.26% 0.32%
D 7218 5906 526 526 7.29% 8.91%

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 13 6 11700 80.91 681 668 136.3
A 13 254 9532 65.01 681 668 136.3
A 3 137 6759 44.67 681 668 136.3
B 5 172 2018781 16655.08 637 620 121.2
B 0 213 61050 498.7 637 620 121.2
B 5 255 48778 397.43 637 620 121.2
C 15 214 255734 1682.91 653 658 151.6
C 0 10 202199 1329.7 653 658 151.6
C 1 23 29338 189.22 653 658 151.6
D 8 195 1572869 10228.67 630 611 153.7
D 1 52 851077 5532.89 630 611 153.7
D 14 173 490880 3189.55 630 611 153.7

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