ASTROSAT CZTI

Data Quality Report

Orbit 04094

Creation date: 2024-06-27T14:37:16.964039
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/AS1G05_192T01_9000000522_04094cztM0_level2.evt modeM0/AS1G05_192T01_9000000522_04094cztM0_level2_quad_clean.evt
Size (bytes)410,722,56034,110,720
Size391.7 MB 32.5 MB
Events in quadrant A1,614,450231,912
Events in quadrant B1,929,317231,026
Events in quadrant C7,086,168131,319
Events in quadrant D1,603,161222,597

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069352
B076811
C0230731
D068001

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3013702.323266%
B30131374.546963%
C3013283494.059077%
D3013872.887488%

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 4213 3013 1 1 0.02% 0.03%
B 4213 3013 58 58 1.38% 1.92%
C 4212 3012 2702 2702 64.15% 89.71%
D 4213 3013 25 25 0.59% 0.83%

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 0 199 117231 1461.88 383 374 79.9
A 0 226 14941 182.23 383 374 79.9
A 0 50 5488 63.98 383 374 79.9
B 10 16 318732 4243.92 384 376 75.0
B 14 167 85077 1129.12 384 376 75.0
B 15 204 15369 199.86 384 376 75.0
C 12 204 6135133 108441.25 242 242 56.6
C 12 4 2231 35.16 242 242 56.6
C 13 61 1955 30.28 242 242 56.6
D 10 172 97595 1081.89 369 358 89.9
D 2 206 68352 756.52 369 358 89.9
D 2 37 16857 183.57 369 358 89.9

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