ASTROSAT CZTI

Data Quality Report

Orbit 14064

Creation date: 2024-06-27T16:49:53.919105
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_055T01_9000002076_14064cztM0_level2.evt modeM0/AS1G08_055T01_9000002076_14064cztM0_level2_quad_clean.evt
Size (bytes)472,904,64090,950,400
Size451.0 MB 86.7 MB
Events in quadrant A3,066,627587,836
Events in quadrant B3,347,714592,510
Events in quadrant C3,188,277578,541
Events in quadrant D4,289,241553,341

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131362
B0138351
C0134081
D0170891

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6329470.742613%
B6329951.501027%
C6329460.726813%
D63291272.006636%

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 7350 6331 0 0 0.00% 0.00%
B 7350 6331 22 22 0.30% 0.35%
C 7350 6331 1 1 0.01% 0.02%
D 7350 6331 67 67 0.91% 1.06%

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 12 189 62126 394.37 772 756 155.6
A 8 15 32774 205.75 772 756 155.6
A 0 226 6758 38.57 772 756 155.6
B 4 80 88111 607.19 769 751 143.9
B 4 48 72370 497.78 769 751 143.9
B 0 189 53624 367.49 769 751 143.9
C 3 233 234049 1359.0 749 753 171.7
C 0 207 29168 165.52 749 753 171.7
C 13 61 5458 27.41 749 753 171.7
D 1 52 567631 3161.65 742 724 179.3
D 8 195 322684 1795.58 742 724 179.3
D 12 110 219195 1218.42 742 724 179.3

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