ASTROSAT CZTI

Data Quality Report

Orbit 44193

Creation date: 2024-06-27T23:00:20.858286
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/AS1A13_074T08_9000005966_44193cztM0_level2.fits modeM0/AS1A13_074T08_9000005966_44193cztM0_level2_quad_clean.evt
Size (bytes)928,514,880204,416,640
Size885.5 MB 194.9 MB
Events in quadrant A9,301,1861,363,817
Events in quadrant B8,442,3081,376,777
Events in quadrant C6,452,8561,340,700
Events in quadrant D9,146,9261,189,860

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0385544
B0338014
C0287284
D0363744

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02760
B02760
C02760
D02760

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A132664653.505201%
B132668036.053068%
C132663172.389567%
D132658456.370147%

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 14736 13270 63 63 0.43% 0.47%
B 14736 13270 320 320 2.17% 2.41%
C 14736 13270 68 68 0.46% 0.51%
D 14735 13269 484 484 3.28% 3.65%

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 10 83 2760865 8763.07 1509 1475 314.9
A 15 223 411870 1303.3 1509 1475 314.9
A 10 248 101351 317.18 1509 1475 314.9
B 5 172 1228347 4184.01 1483 1437 293.2
B 0 219 238873 809.7 1483 1437 293.2
B 0 200 219333 743.07 1483 1437 293.2
C 14 254 370954 1053.74 1480 1490 350.6
C 15 158 105997 298.06 1480 1490 350.6
C 4 254 77306 216.23 1480 1490 350.6
D 1 52 1123230 3012.35 1455 1412 372.4
D 13 249 665827 1784.11 1455 1412 372.4
D 2 249 643280 1723.57 1455 1412 372.4

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