ASTROSAT CZTI

Data Quality Report

Orbit 30758

Creation date: 2024-06-27T20:19:16.732412
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/AS1A10_053T37_9000004444_30758cztM0_level2.evt modeM0/AS1A10_053T37_9000004444_30758cztM0_level2_quad_clean.evt
Size (bytes)446,425,92087,252,480
Size425.7 MB 83.2 MB
Events in quadrant A2,760,733571,159
Events in quadrant B4,254,299581,658
Events in quadrant C2,827,315570,708
Events in quadrant D3,322,666552,244

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113931
B0161291
C0116061
D0134851

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5237420.801986%
B5237731.393928%
C5237861.642162%
D52371011.928585%

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 6497 5238 16 16 0.25% 0.31%
B 6497 5237 6 6 0.09% 0.11%
C 6497 5237 2 2 0.03% 0.04%
D 6497 5237 60 60 0.92% 1.15%

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 0 13 92362 657.57 690 677 139.4
A 13 254 9699 64.7 690 677 139.4
A 15 192 7184 46.67 690 677 139.4
B 6 159 1492257 11517.81 686 670 129.5
B 0 190 22384 167.67 686 670 129.5
B 5 172 19308 143.92 686 670 129.5
C 14 238 108714 684.83 676 682 157.8
C 3 233 36976 230.07 676 682 157.8
C 0 10 28673 177.44 676 682 157.8
D 8 195 395568 2459.94 677 661 160.5
D 10 253 226180 1404.79 677 661 160.5
D 13 249 88593 547.74 677 661 160.5

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