ASTROSAT CZTI

Data Quality Report

Orbit 44813

Creation date: 2024-06-27T23:07:29.343581
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_024T02_9000006026_44813cztM0_level2.fits modeM0/AS1A13_024T02_9000006026_44813cztM0_level2_quad_clean.evt
Size (bytes)796,446,720107,412,480
Size759.6 MB 102.4 MB
Events in quadrant A12,404,759524,703
Events in quadrant B3,668,553787,209
Events in quadrant C3,240,917756,939
Events in quadrant D9,597,576669,609

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0419890
B0162510
C0153800
D0337544

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7381276137.406855%
B73821892.560282%
C7382280.379301%
D73814606.232218%

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 7380 7380 2596 2596 35.18% 35.18%
B 7382 7382 102 102 1.38% 1.38%
C 7381 7381 24 24 0.33% 0.33%
D 7381 7381 398 398 5.39% 5.39%

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 15 223 7524476 52116.8 696 681 144.4
A 10 83 1790372 12397.06 696 681 144.4
A 13 248 278649 1925.46 696 681 144.4
B 0 189 191000 1220.79 787 760 155.8
B 5 255 174398 1114.26 787 760 155.8
B 0 190 38344 241.18 787 760 155.8
C 2 14 72727 398.48 772 775 180.6
C 12 2 50081 273.06 772 775 180.6
C 14 254 48706 265.45 772 775 180.6
D 13 187 4858354 25625.09 752 728 189.6
D 1 52 894062 4712.54 752 728 189.6
D 2 249 218307 1147.78 752 728 189.6

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