ASTROSAT CZTI

Data Quality Report

Orbit 14556

Creation date: 2024-06-27T16:56:48.056777
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/AS1G08_081T01_9000002144_14556cztM0_level2.evt modeM0/AS1G08_081T01_9000002144_14556cztM0_level2_quad_clean.evt
Size (bytes)230,117,76024,664,320
Size219.5 MB 23.5 MB
Events in quadrant A1,802,631138,714
Events in quadrant B1,602,139133,949
Events in quadrant C1,860,047128,761
Events in quadrant D1,501,560133,747

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A072421
B066801
C077481
D064081

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2963321.079987%
B2963230.776240%
C2963170.573743%
D2963260.877489%

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 3789 2965 1 1 0.03% 0.03%
B 3789 2965 1 1 0.03% 0.03%
C 3789 2965 0 0 0.00% 0.00%
D 3789 2965 8 8 0.21% 0.27%

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 0 23 286619 3808.0 366 358 75.2
A 12 189 51151 675.68 366 358 75.2
A 8 15 35278 464.52 366 358 75.2
B 0 189 119463 1669.78 361 351 71.3
B 4 173 23178 320.0 361 351 71.3
B 4 48 9498 128.23 361 351 71.3
C 3 233 466628 5650.94 352 353 82.5
C 6 96 13158 155.19 352 353 82.5
C 14 220 3542 38.65 352 353 82.5
D 2 152 44564 499.69 355 347 88.5
D 10 199 35488 397.12 355 347 88.5
D 13 172 35167 393.5 355 347 88.5

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