ASTROSAT CZTI

Data Quality Report

Orbit 07015

Creation date: 2024-06-27T15:14:28.142941
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/AS1G06_026T01_9000000962_07015cztM0_level2.evt modeM0/AS1G06_026T01_9000000962_07015cztM0_level2_quad_clean.evt
Size (bytes)409,737,60092,661,120
Size390.8 MB 88.4 MB
Events in quadrant A2,958,547590,633
Events in quadrant B3,146,824600,490
Events in quadrant C2,932,162589,730
Events in quadrant D2,922,551565,467

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133843
B0137852
C0133362
D0135322

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6601200.302984%
B6601300.454477%
C6601200.302984%
D6601120.181791%

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 7621 6602 5 5 0.07% 0.08%
B 7621 6602 2 2 0.03% 0.03%
C 7621 6602 0 0 0.00% 0.00%
D 7621 6602 0 0 0.00% 0.00%

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 24415 152.82 759 743 154.9
A 13 248 9928 59.3 759 743 154.9
A 0 226 7151 41.37 759 743 154.9
B 0 214 75804 513.06 771 752 146.3
B 0 199 35432 237.08 771 752 146.3
B 12 111 14402 93.31 771 752 146.3
C 13 61 5870 29.39 749 751 174.2
C 12 4 4090 19.17 749 751 174.2
C 14 67 3704 16.95 749 751 174.2
D 8 195 32700 176.02 743 720 181.7
D 12 233 23939 127.8 743 720 181.7
D 14 34 21793 115.99 743 720 181.7

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