ASTROSAT CZTI

Data Quality Report

Orbit 13406

Creation date: 2024-06-27T16:40:20.731477
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_103T01_9000001988_13406cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13406cztM0_level2_quad_clean.evt
Size (bytes)530,714,880102,029,760
Size506.1 MB 97.3 MB
Events in quadrant A3,275,429659,567
Events in quadrant B4,141,326669,453
Events in quadrant C3,318,098654,542
Events in quadrant D4,856,018611,714

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146103
B0168322
C0145922
D0192782

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7105180.253343%
B71051882.646024%
C710550.070373%
D71051161.632653%

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 7826 7107 0 0 0.00% 0.00%
B 7826 7106 73 73 0.93% 1.03%
C 7826 7107 0 0 0.00% 0.00%
D 7826 7107 106 106 1.35% 1.49%

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 69 11147 59.56 846 829 173.2
A 0 226 7498 38.49 846 829 173.2
A 1 162 7126 36.35 846 829 173.2
B 3 64 440609 2733.64 844 823 160.9
B 10 244 318691 1975.82 844 823 160.9
B 4 142 43079 262.66 844 823 160.9
C 3 233 73837 382.29 822 827 191.0
C 14 220 41366 212.27 822 827 191.0
C 13 61 5856 26.33 822 827 191.0
D 8 195 764778 3956.5 803 780 193.1
D 1 52 476434 2463.26 803 780 193.1
D 2 136 296244 1530.11 803 780 193.1

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