ASTROSAT CZTI

Data Quality Report

Orbit 22596

Creation date: 2024-06-27T18:43:21.157799
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/AS1C05_001T01_9000003354_22596cztM0_level2.evt modeM0/AS1C05_001T01_9000003354_22596cztM0_level2_quad_clean.evt
Size (bytes)444,726,720131,186,880
Size424.1 MB 125.1 MB
Events in quadrant A3,078,754910,874
Events in quadrant B3,448,032920,914
Events in quadrant C3,129,279857,771
Events in quadrant D3,383,893843,792

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132912
B0143523
C0133672
D0142372

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6309340.538913%
B6308570.903614%
C6308651.030438%
D6308360.570704%

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 7584 6311 1 1 0.01% 0.02%
B 7583 6310 11 11 0.15% 0.17%
C 7583 6310 2 2 0.03% 0.03%
D 7583 6310 28 28 0.37% 0.44%

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 14 238 12127 71.85 789 776 158.0
A 4 2 11873 70.24 789 776 158.0
A 13 254 11458 67.61 789 776 158.0
B 0 190 110860 756.58 788 770 145.5
B 0 229 73315 498.56 788 770 145.5
B 0 228 69278 470.81 788 770 145.5
C 14 238 119852 698.39 740 743 170.5
C 10 222 91213 530.47 740 743 170.5
C 0 10 20137 113.72 740 743 170.5
D 1 52 198045 1085.17 751 728 181.8
D 12 227 119966 655.76 751 728 181.8
D 12 233 46712 252.89 751 728 181.8

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