ASTROSAT CZTI

Data Quality Report

Orbit 44705

Creation date: 2024-06-27T23:05:26.301083
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_077T01_9000006014_44705cztM0_level2.fits modeM0/AS1A13_077T01_9000006014_44705cztM0_level2_quad_clean.evt
Size (bytes)360,884,16074,943,360
Size344.2 MB 71.5 MB
Events in quadrant A3,427,293517,938
Events in quadrant B2,371,038534,406
Events in quadrant C2,092,087508,019
Events in quadrant D5,125,151398,197

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138501
B099131
C092371
D0183461

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4411781.768307%
B4411841.904330%
C4410190.430839%
D441074316.848073%

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 5631 4412 11 11 0.20% 0.25%
B 5631 4412 23 23 0.41% 0.52%
C 5630 4411 3 3 0.05% 0.07%
D 5630 4411 572 572 10.16% 12.97%

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 1349450 12407.63 521 511 108.7
A 13 248 20014 179.39 521 511 108.7
A 15 223 15400 136.95 521 511 108.7
B 5 172 109512 1062.37 520 505 102.6
B 0 190 43945 423.36 520 505 102.6
B 4 171 38449 369.8 520 505 102.6
C 14 254 40636 333.26 509 513 120.4
C 3 233 28609 233.36 509 513 120.4
C 1 3 13789 110.27 509 513 120.4
D 11 241 1270897 10323.64 477 462 123.1
D 13 249 1079055 8764.72 477 462 123.1
D 4 222 274801 2229.3 477 462 123.1

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