ASTROSAT CZTI

Data Quality Report

Orbit 19559

Creation date: 2024-06-27T18:04:04.646549
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_115T02_9000002906_19559cztM0_level2.evt modeM0/AS1A05_115T02_9000002906_19559cztM0_level2_quad_clean.evt
Size (bytes)512,418,24094,901,760
Size488.7 MB 90.5 MB
Events in quadrant A3,639,079611,354
Events in quadrant B3,521,031618,260
Events in quadrant C3,601,914584,271
Events in quadrant D4,278,339569,562

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149241
B0149081
C0150361
D0174001

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70451882.668559%
B70441982.810903%
C70452443.463449%
D70453114.414478%

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 7175 7047 0 0 0.00% 0.00%
B 7174 7045 1 1 0.01% 0.01%
C 7175 7046 0 0 0.00% 0.00%
D 7175 7046 143 143 1.99% 2.03%

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 15 191 272186 1541.73 870 851 176.0
A 13 254 11396 59.92 870 851 176.0
A 0 226 7842 39.72 870 851 176.0
B 7 220 55873 331.78 859 837 165.9
B 3 64 32130 188.65 859 837 165.9
B 0 198 22393 129.95 859 837 165.9
C 14 238 128564 655.85 829 834 194.8
C 3 233 127678 651.3 829 834 194.8
C 7 247 79992 406.45 829 834 194.8
D 12 233 503213 2438.29 840 815 206.0
D 12 218 246620 1192.97 840 815 206.0
D 7 238 194247 938.79 840 815 206.0

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