ASTROSAT CZTI

Data Quality Report

Orbit 33265

Creation date: 2024-06-27T20:46:48.223981
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/AS1A11_047T10_9000004778_33265cztM0_level2.evt modeM0/AS1A11_047T10_9000004778_33265cztM0_level2_quad_clean.evt
Size (bytes)575,006,40055,085,760
Size548.4 MB 52.5 MB
Events in quadrant A2,715,978345,664
Events in quadrant B4,661,352331,373
Events in quadrant C3,377,090332,288
Events in quadrant D6,306,062291,833

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109733
B0172142
C0131512
D0224152

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A522660.114811%
B522660211.519326%
C5226871.664753%
D5226103219.747417%

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 7349 5227 0 0 0.00% 0.00%
B 7349 5227 432 432 5.88% 8.26%
C 7349 5227 72 72 0.98% 1.38%
D 7349 5227 836 836 11.38% 15.99%

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 30058 217.32 688 677 135.2
A 13 6 12534 87.7 688 677 135.2
A 13 254 9512 65.35 688 677 135.2
B 5 172 1506584 12550.6 644 629 120.0
B 0 219 309336 2572.76 644 629 120.0
B 5 200 91151 754.41 644 629 120.0
C 10 49 553117 3718.62 655 661 148.6
C 0 10 141371 947.13 655 661 148.6
C 15 214 52350 347.92 655 661 148.6
D 12 218 1626451 9866.89 598 586 164.8
D 8 195 1040612 6311.61 598 586 164.8
D 2 249 439540 2663.88 598 586 164.8

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