ASTROSAT CZTI

Data Quality Report

Orbit 17051

Creation date: 2024-06-27T17:31:22.559358
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/AS1T03_004T01_9000002532_17051cztM0_level2.evt modeM0/AS1T03_004T01_9000002532_17051cztM0_level2_quad_clean.evt
Size (bytes)500,160,96057,600,000
Size477.0 MB 54.9 MB
Events in quadrant A3,126,840339,078
Events in quadrant B3,132,321350,766
Events in quadrant C5,060,096318,241
Events in quadrant D3,423,666318,706

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127651
B0127071
C0193474
D0140581

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5965310.519698%
B5966460.771036%
C59653015.046102%
D5965921.542330%

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 7346 5967 6 6 0.08% 0.10%
B 7347 5968 1 1 0.01% 0.02%
C 7346 5967 2 2 0.03% 0.03%
D 7346 5967 55 55 0.75% 0.92%

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 4 2 101577 644.8 783 769 156.3
A 15 174 11483 68.53 783 769 156.3
A 0 226 6978 39.72 783 769 156.3
B 0 219 17582 114.52 789 772 146.8
B 12 111 16746 108.82 789 772 146.8
B 11 111 14424 93.0 789 772 146.8
C 3 233 2058574 12020.2 738 746 171.2
C 14 238 115705 671.5 738 746 171.2
C 9 160 5925 30.25 738 746 171.2
D 5 222 490663 2706.52 747 726 181.0
D 10 70 76237 417.14 747 726 181.0
D 2 234 21116 112.64 747 726 181.0

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