ASTROSAT CZTI

Data Quality Report

Orbit 16379

Creation date: 2024-06-27T17:21:49.253222
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_069T04_9000002418_16379cztM0_level2.evt modeM0/AS1A05_069T04_9000002418_16379cztM0_level2_quad_clean.evt
Size (bytes)481,674,24083,986,560
Size459.4 MB 80.1 MB
Events in quadrant A3,504,314535,836
Events in quadrant B3,580,718543,724
Events in quadrant C3,255,976521,183
Events in quadrant D3,812,510496,571

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147062
B0148462
C0139412
D0157542

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6384961.503759%
B63841151.801378%
C63841151.801378%
D63842564.010025%

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 7900 6387 11 11 0.14% 0.17%
B 7900 6386 25 25 0.32% 0.39%
C 7900 6387 1 1 0.01% 0.02%
D 7900 6387 108 108 1.37% 1.69%

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 15 174 474687 3049.17 764 746 155.4
A 15 223 48750 308.84 764 746 155.4
A 9 143 20921 129.8 764 746 155.4
B 10 16 201812 1360.99 765 745 147.7
B 15 35 105944 712.08 765 745 147.7
B 0 189 64772 433.39 765 745 147.7
C 3 233 261265 1502.9 736 742 173.3
C 14 238 111865 641.05 736 742 173.3
C 10 169 10499 56.29 736 742 173.3
D 1 52 565006 3115.52 735 714 181.1
D 12 218 368524 2030.72 735 714 181.1
D 10 70 28448 153.12 735 714 181.1

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