ASTROSAT CZTI

Data Quality Report

Orbit 09374

Creation date: 2024-06-27T15:45:13.942579
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/AS1A03_057T01_9000001330_09374cztM0_level2.evt modeM0/AS1A03_057T01_9000001330_09374cztM0_level2_quad_clean.evt
Size (bytes)444,600,00082,517,760
Size424.0 MB 78.7 MB
Events in quadrant A3,981,260518,875
Events in quadrant B2,970,081532,401
Events in quadrant C2,741,576528,388
Events in quadrant D3,368,009504,223

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0171

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180052118
B0141321515
C0136261390
D0157732104

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013410
B013414
C01348
D013315

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58671262.147605%
B5970731.222781%
C5976500.836680%
D5892961.629328%

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 7645 6317 20 20 0.26% 0.32%
B 7645 6360 2 2 0.03% 0.03%
C 7644 6369 0 0 0.00% 0.00%
D 7645 6274 22 22 0.29% 0.35%

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 8 5 1131382 7914.63 705 692 142.9
A 13 251 90865 631.2 705 692 142.9
A 5 16 22635 153.6 705 692 142.9
B 0 214 62874 448.72 722 705 138.5
B 4 173 46502 330.55 722 705 138.5
B 0 219 24318 170.43 722 705 138.5
C 13 61 5244 28.28 698 701 160.6
C 8 128 4733 25.1 698 701 160.6
C 8 222 4273 22.24 698 701 160.6
D 1 52 322623 1843.38 685 669 174.7
D 8 195 225557 1287.62 685 669 174.7
D 7 71 43652 246.1 685 669 174.7

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