ASTROSAT CZTI

Data Quality Report

Orbit 11318

Creation date: 2024-06-27T16:11:14.462958
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_028T01_9000001656_11318cztM0_level2.evt modeM0/AS1G08_028T01_9000001656_11318cztM0_level2_quad_clean.evt
Size (bytes)337,547,52049,291,200
Size321.9 MB 47.0 MB
Events in quadrant A2,214,138315,042
Events in quadrant B2,443,007321,410
Events in quadrant C2,144,489314,580
Events in quadrant D3,181,497292,178

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A087722
B094731
C086121
D0118041

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A35171042.957066%
B35172206.255331%
C3517862.445266%
D35173319.411430%

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 4817 3518 55 55 1.14% 1.56%
B 4817 3518 101 101 2.10% 2.87%
C 4817 3518 42 42 0.87% 1.19%
D 4817 3518 238 238 4.94% 6.77%

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 8 5 292385 3067.77 460 451 95.2
A 6 16 45627 474.73 460 451 95.2
A 14 238 40437 420.19 460 451 95.2
B 4 239 491323 5510.16 460 448 89.1
B 3 189 111345 1244.84 460 448 89.1
B 15 204 20957 230.22 460 448 89.1
C 9 204 400585 3824.14 445 447 104.6
C 14 234 4383 37.62 445 447 104.6
C 12 4 3965 33.62 445 447 104.6
D 7 80 656959 6281.45 429 417 104.5
D 10 253 553005 5286.87 429 417 104.5
D 2 120 191148 1824.81 429 417 104.5

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