ASTROSAT CZTI

Data Quality Report

Orbit 04084

Creation date: 2024-06-27T14:37:10.125438
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/AS1G05_222T01_9000000520_04084cztM0_level2.evt modeM0/AS1G05_222T01_9000000520_04084cztM0_level2_quad_clean.evt
Size (bytes)450,391,68082,137,600
Size429.5 MB 78.3 MB
Events in quadrant A3,547,032510,646
Events in quadrant B3,382,455514,887
Events in quadrant C3,053,070508,449
Events in quadrant D3,205,448489,617

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152113
B0144502
C0137262
D0144222

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6654590.886685%
B6654921.382627%
C6654440.661256%
D6654881.322513%

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 7539 6656 37 37 0.49% 0.56%
B 7539 6655 39 39 0.52% 0.59%
C 7539 6655 9 9 0.12% 0.14%
D 7539 6656 64 64 0.85% 0.96%

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 0 199 460316 2889.81 771 755 159.0
A 0 50 75320 468.88 771 755 159.0
A 0 226 48092 297.66 771 755 159.0
B 14 167 143573 939.62 786 766 152.0
B 10 16 91162 594.77 786 766 152.0
B 4 81 29316 187.85 786 766 152.0
C 9 144 78485 432.1 760 763 179.9
C 13 61 6324 30.92 760 763 179.9
C 12 4 4239 19.32 760 763 179.9
D 10 172 147836 798.64 751 730 184.2
D 2 14 103835 559.76 751 730 184.2
D 2 232 56725 304.0 751 730 184.2

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