ASTROSAT CZTI

Data Quality Report

Orbit 18299

Creation date: 2024-06-27T17:48:03.190192
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/AS1A06_006T01_9000002720_18299cztM0_level2.evt modeM0/AS1A06_006T01_9000002720_18299cztM0_level2_quad_clean.evt
Size (bytes)571,106,88096,203,520
Size544.6 MB 91.7 MB
Events in quadrant A3,685,672627,740
Events in quadrant B3,276,234632,439
Events in quadrant C3,215,417617,425
Events in quadrant D6,667,266571,460

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151451
B0138741
C0138011
D0244082

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66631822.731502%
B66641392.085834%
C66641522.280912%
D666375411.316224%

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 7148 6665 41 41 0.57% 0.62%
B 7149 6666 1 1 0.01% 0.02%
C 7149 6666 1 1 0.01% 0.02%
D 7148 6665 659 659 9.22% 9.89%

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 15 174 214917 1283.77 824 806 166.8
A 4 2 204236 1219.73 824 806 166.8
A 9 143 96868 575.97 824 806 166.8
B 7 220 19536 118.56 821 801 158.0
B 12 111 18228 110.28 821 801 158.0
B 11 111 15559 93.39 821 801 158.0
C 14 238 121079 652.33 787 791 184.4
C 8 128 8377 41.14 787 791 184.4
C 3 233 7685 37.39 787 791 184.4
D 7 238 1876331 9792.56 781 757 191.5
D 1 52 778605 4061.22 781 757 191.5
D 13 168 520458 2713.41 781 757 191.5

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