ASTROSAT CZTI

Data Quality Report

Orbit 30760

Creation date: 2024-06-27T20:19:18.137873
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_30760cztM0_level2.evt modeM0/AS1A10_053T37_9000004444_30760cztM0_level2_quad_clean.evt
Size (bytes)515,306,88089,691,840
Size491.4 MB 85.5 MB
Events in quadrant A3,064,377583,421
Events in quadrant B4,908,072587,074
Events in quadrant C3,259,443568,517
Events in quadrant D3,969,565559,680

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125201
B01848416
C0131113
D01570410

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5978250.418200%
B59731151.925331%
C5978771.288056%
D5976290.485274%

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 7318 5978 0 0 0.00% 0.00%
B 7318 5979 1 1 0.01% 0.02%
C 7319 5980 1 1 0.01% 0.02%
D 7319 5980 5 5 0.07% 0.08%

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 10166 59.48 794 779 157.8
A 3 137 7368 41.75 794 779 157.8
A 0 226 6836 38.38 794 779 157.8
B 6 159 1690644 11346.47 782 763 148.9
B 0 190 36418 239.4 782 763 148.9
B 5 255 31502 206.39 782 763 148.9
C 14 238 124785 696.18 764 774 178.1
C 3 233 72014 399.93 764 774 178.1
C 1 16 38597 212.33 764 774 178.1
D 8 195 782763 4284.89 776 760 182.5
D 12 227 197297 1076.9 776 760 182.5
D 2 250 33374 178.7 776 760 182.5

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