ASTROSAT CZTI

Data Quality Report

Orbit 23147

Creation date: 2024-06-27T18:50:30.582156
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/AS1C05_002T03_9000003418_23147cztM0_level2.evt modeM0/AS1C05_002T03_9000003418_23147cztM0_level2_quad_clean.evt
Size (bytes)301,921,92074,949,120
Size287.9 MB 71.5 MB
Events in quadrant A1,931,814496,141
Events in quadrant B1,978,098514,453
Events in quadrant C2,143,940497,267
Events in quadrant D2,803,912466,802

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A085441
B086221
C090541
D0112191

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A418710.023883%
B418760.143301%
C4187842.006210%
D41872776.615715%

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 4187 4187 0 0 0.00% 0.00%
B 4187 4187 1 1 0.02% 0.02%
C 4187 4187 47 47 1.12% 1.12%
D 4187 4187 237 237 5.66% 5.66%

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 6 16 12353 118.19 498 489 100.4
A 13 254 5469 49.61 498 489 100.4
A 3 137 4271 37.68 498 489 100.4
B 12 111 11126 110.7 504 493 96.1
B 11 111 10057 99.57 504 493 96.1
B 14 111 9001 88.58 504 493 96.1
C 0 10 138750 1223.48 481 484 113.0
C 14 238 77080 677.78 481 484 113.0
C 8 208 24410 211.71 481 484 113.0
D 2 136 494713 4270.78 473 460 115.7
D 1 52 451073 3893.69 473 460 115.7
D 13 104 20055 169.32 473 460 115.7

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