ASTROSAT CZTI

Data Quality Report

Orbit 10465

Creation date: 2024-06-27T15:59:33.899292
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_126T01_9000001512_10465cztM0_level2.evt modeM0/AS1A03_126T01_9000001512_10465cztM0_level2_quad_clean.evt
Size (bytes)353,445,12067,700,160
Size337.1 MB 64.6 MB
Events in quadrant A2,452,228418,999
Events in quadrant B2,411,628413,820
Events in quadrant C2,348,244428,886
Events in quadrant D3,159,291446,640

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0242133
B0242138
C0242132
D0231121

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02390713802
B03111621231
C02451914426
D02939916857

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02512
B02613
C02613
D0229

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4871220.451653%
B4362671.535993%
C4937200.405104%
D5257390.741868%

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 7282 5782 0 0 0.00% 0.00%
B 7282 5267 4 4 0.05% 0.08%
C 7281 5795 0 0 0.00% 0.00%
D 7283 5772 10 10 0.14% 0.17%

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 13 251 70760 583.05 592 581 120.4
A 3 80 62106 511.15 592 581 120.4
A 1 162 15888 127.17 592 581 120.4
B 4 239 275282 2692.23 532 519 102.1
B 0 214 41212 398.73 532 519 102.1
B 12 111 10776 100.5 532 519 102.1
C 14 234 8740 58.64 599 604 138.8
C 13 61 4411 27.44 599 604 138.8
C 14 67 1586 7.08 599 604 138.8
D 8 195 452304 3056.77 625 611 147.8
D 1 20 191523 1291.97 625 611 147.8
D 1 52 110263 742.05 625 611 147.8

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