ASTROSAT CZTI

Data Quality Report

Orbit 28369

Creation date: 2024-06-27T19:51:01.953388
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/AS1A10_101T02_9000004084_28369cztM0_level2.evt modeM0/AS1A10_101T02_9000004084_28369cztM0_level2_quad_clean.evt
Size (bytes)557,268,48091,719,360
Size531.5 MB 87.5 MB
Events in quadrant A3,806,317597,712
Events in quadrant B3,754,826625,613
Events in quadrant C3,155,406581,722
Events in quadrant D5,742,398541,355

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152350
B0151170
C0130890
D0213010

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61763585.796632%
B6177851.376073%
C6177671.084669%
D61773405.504290%

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 7456 6177 299 299 4.01% 4.84%
B 7457 6178 28 28 0.38% 0.45%
C 7457 6177 0 0 0.00% 0.00%
D 7457 6178 302 302 4.05% 4.89%

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 15 174 717090 4521.23 797 781 158.4
A 12 96 14081 83.95 797 781 158.4
A 13 254 10848 63.54 797 781 158.4
B 10 245 487987 3230.45 804 785 150.8
B 10 246 69457 455.34 804 785 150.8
B 0 230 40026 260.19 804 785 150.8
C 14 238 127138 712.34 767 774 177.4
C 3 233 26491 144.97 767 774 177.4
C 0 10 5494 26.61 767 774 177.4
D 8 195 1641720 8998.49 765 746 182.4
D 1 52 905144 4959.38 765 746 182.4
D 7 238 138486 755.32 765 746 182.4

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