ASTROSAT CZTI

Data Quality Report

Orbit 11906

Creation date: 2024-06-27T16:19:54.360470
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/AS1A04_088T05_9000001764_11906cztM0_level2.evt modeM0/AS1A04_088T05_9000001764_11906cztM0_level2_quad_clean.evt
Size (bytes)457,303,68070,755,840
Size436.1 MB 67.5 MB
Events in quadrant A3,224,951435,889
Events in quadrant B4,032,617420,449
Events in quadrant C2,645,140445,298
Events in quadrant D3,544,715427,353

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133591
B0157471
C0120731
D0145801

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59171803.042082%
B59174146.996789%
C5917941.588643%
D59172163.650499%

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 6188 5918 8 8 0.13% 0.14%
B 6188 5918 219 219 3.54% 3.70%
C 6188 5918 0 0 0.00% 0.00%
D 6188 5919 128 128 2.07% 2.16%

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 8 15 149041 1048.21 687 669 141.5
A 1 162 148302 1042.99 687 669 141.5
A 1 178 80397 563.26 687 669 141.5
B 4 239 992796 7479.17 678 660 132.7
B 10 252 152940 1147.95 678 660 132.7
B 15 204 73447 548.7 678 660 132.7
C 13 61 5061 27.71 678 681 158.0
C 3 202 1693 6.4 678 681 158.0
C -1 -1 -1 -1.0 678 681 158.0
D 1 52 455949 2860.98 668 650 159.1
D 13 249 244703 1533.57 668 650 159.1
D 13 104 115144 719.45 668 650 159.1

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