ASTROSAT CZTI

Data Quality Report

Orbit 47227

Creation date: 2024-06-27T23:33:07.311163
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/AS1C09_005T01_9000006304_47227cztM0_level2.fits modeM0/AS1C09_005T01_9000006304_47227cztM0_level2_quad_clean.evt
Size (bytes)521,585,280110,989,440
Size497.4 MB 105.8 MB
Events in quadrant A8,425,415705,955
Events in quadrant B4,383,245750,800
Events in quadrant C2,919,906754,972
Events in quadrant D3,068,067689,764

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0297592
B0175392
C0133272
D0139592

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A658570010.630220%
B65853915.937737%
C6585140.212604%
D6585250.379651%

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 7780 6586 474 474 6.09% 7.20%
B 7779 6584 209 209 2.69% 3.17%
C 7779 6584 0 0 0.00% 0.00%
D 7779 6584 18 18 0.23% 0.27%

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 3513760 23924.13 720 707 146.8
A 9 191 2092797 14247.27 720 707 146.8
A 14 248 17096 111.61 720 707 146.8
B 15 201 1245358 8821.49 730 708 141.1
B 5 32 167499 1182.14 730 708 141.1
B 0 200 33970 235.75 730 708 141.1
C 14 254 15074 82.41 743 747 173.8
C 14 67 4963 24.25 743 747 173.8
C 13 61 4950 24.18 743 747 173.8
D 1 47 70030 375.71 734 709 184.5
D 2 249 40645 216.45 734 709 184.5
D 12 233 37012 196.76 734 709 184.5

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