ASTROSAT CZTI

Data Quality Report

Orbit 30539

Creation date: 2024-06-27T20:16:27.662441
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_053T13_9000004394_30539cztM0_level2.evt modeM0/AS1A10_053T13_9000004394_30539cztM0_level2_quad_clean.evt
Size (bytes)557,827,200101,295,360
Size532.0 MB 96.6 MB
Events in quadrant A3,410,085667,870
Events in quadrant B5,421,603660,604
Events in quadrant C3,995,818627,891
Events in quadrant D3,607,968639,684

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142552
B0210022
C0160582
D0147542

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6764340.502661%
B67651602.365115%
C67652844.198078%
D6765210.310421%

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 7869 6765 4 4 0.05% 0.06%
B 7870 6766 54 54 0.69% 0.80%
C 7870 6766 118 118 1.50% 1.74%
D 7870 6766 5 5 0.06% 0.07%

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 96 36019 203.25 866 849 173.0
A 8 192 22205 123.42 866 849 173.0
A 13 254 12982 70.12 866 849 173.0
B 6 159 1843579 11456.54 844 823 160.8
B 4 171 138347 855.0 844 823 160.8
B 6 36 66433 407.9 844 823 160.8
C 10 22 585830 3090.63 816 822 189.3
C 14 238 131244 689.03 816 822 189.3
C 0 10 57701 300.49 816 822 189.3
D 8 195 289324 1453.92 845 825 198.4
D 13 104 37263 183.63 845 825 198.4
D 2 250 35817 176.35 845 825 198.4

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