ASTROSAT CZTI

Data Quality Report

Orbit 10483

Creation date: 2024-06-27T16:00:01.367471
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_084T01_9000001514_10483cztM0_level2.evt modeM0/AS1A03_084T01_9000001514_10483cztM0_level2_quad_clean.evt
Size (bytes)303,468,48063,959,040
Size289.4 MB 61.0 MB
Events in quadrant A2,109,971412,762
Events in quadrant B2,622,206416,419
Events in quadrant C1,969,367408,036
Events in quadrant D2,184,503385,731

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A091245
B01065134
C091073
D0954323

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4461430.963909%
B44501433.213483%
C4462240.537875%
D4453320.718617%

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 4462 4462 1 1 0.02% 0.02%
B 4462 4458 82 82 1.84% 1.84%
C 4462 4462 2 2 0.04% 0.04%
D 4462 4460 6 6 0.13% 0.13%

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 3 80 63252 587.07 518 506 106.9
A 13 251 22095 201.99 518 506 106.9
A 4 2 8288 72.81 518 506 106.9
B 4 239 425371 4242.89 514 503 100.1
B 11 51 104196 1035.52 514 503 100.1
B 0 214 30924 303.8 514 503 100.1
C 14 234 18691 155.35 498 499 117.1
C 3 254 6201 48.69 498 499 117.1
C 13 61 3671 27.09 498 499 117.1
D 1 20 123637 1033.91 494 479 119.1
D 1 52 75945 633.54 494 479 119.1
D 2 14 35657 295.32 494 479 119.1

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