ASTROSAT CZTI

Data Quality Report

Orbit 21033

Creation date: 2024-06-27T18:22:45.128008
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/AS1A05_088T02_9000003106_21033cztM0_level2.evt modeM0/AS1A05_088T02_9000003106_21033cztM0_level2_quad_clean.evt
Size (bytes)461,548,80066,574,080
Size440.2 MB 63.5 MB
Events in quadrant A3,219,313402,093
Events in quadrant B3,472,074404,951
Events in quadrant C3,254,993380,973
Events in quadrant D3,590,197374,160

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133921
B0140491
C0134821
D0148221

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6500390.600000%
B6501861.322873%
C6500751.153846%
D6500841.292308%

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 7735 6501 0 0 0.00% 0.00%
B 7736 6502 18 18 0.23% 0.28%
C 7735 6501 0 0 0.00% 0.00%
D 7735 6501 50 50 0.65% 0.77%

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 13 254 7879 42.17 836 819 167.4
A 0 226 7143 37.78 836 819 167.4
A 3 137 6407 33.38 836 819 167.4
B 0 189 45563 285.69 836 816 156.6
B 0 190 42378 265.35 836 816 156.6
B 0 230 31550 196.22 836 816 156.6
C 14 238 126561 676.8 796 802 185.8
C 9 54 27285 142.52 796 802 185.8
C 13 61 5554 25.57 796 802 185.8
D 1 52 292572 1523.76 798 776 191.5
D 1 20 79648 411.87 798 776 191.5
D 12 233 74599 385.5 798 776 191.5

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