ASTROSAT CZTI

Data Quality Report

Orbit 08386

Creation date: 2024-06-27T15:32:07.087948
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/AS1G07_076T04_9000001172_08386cztM0_level2.evt modeM0/AS1G07_076T04_9000001172_08386cztM0_level2_quad_clean.evt
Size (bytes)85,766,40023,739,840
Size81.8 MB 22.6 MB
Events in quadrant A606,321157,259
Events in quadrant B648,524159,151
Events in quadrant C601,415153,547
Events in quadrant D648,139149,566

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A026370
B027400
C026340
D027670

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A131620.151976%
B131660.455927%
C131600.000000%
D131660.455927%

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 1316 1316 0 0 0.00% 0.00%
B 1316 1316 2 2 0.15% 0.15%
C 1316 1316 0 0 0.00% 0.00%
D 1316 1316 2 2 0.15% 0.15%

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 0 226 1571 41.72 157 153 34.0
A 12 194 1454 38.27 157 153 34.0
A 3 137 637 14.24 157 153 34.0
B 0 214 33306 1031.17 156 152 32.2
B 4 48 5110 154.21 156 152 32.2
B 12 111 3157 93.46 156 152 32.2
C 8 128 2826 71.76 152 153 37.2
C 8 112 1472 35.41 152 153 37.2
C 13 61 1191 27.87 152 153 37.2
D 1 52 28263 650.56 154 150 43.2
D 12 233 19811 454.97 154 150 43.2
D 7 71 5584 125.75 154 150 43.2

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