ASTROSAT CZTI

Data Quality Report

Orbit 16308

Creation date: 2024-06-27T17:20:48.473106
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/AS1A05_034T01_9000002404_16308cztM0_level2.evt modeM0/AS1A05_034T01_9000002404_16308cztM0_level2_quad_clean.evt
Size (bytes)455,869,44088,490,880
Size434.8 MB 84.4 MB
Events in quadrant A3,509,760551,060
Events in quadrant B3,445,792568,046
Events in quadrant C3,174,188553,628
Events in quadrant D3,224,385543,376

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147393
B0144452
C0135632
D0141332

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6654440.661256%
B6654380.571085%
C6654410.616171%
D6654430.646228%

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 7755 6656 8 8 0.10% 0.12%
B 7755 6656 5 5 0.06% 0.08%
C 7755 6656 0 0 0.00% 0.00%
D 7755 6656 24 24 0.31% 0.36%

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 428178 2628.93 802 787 162.6
A 0 226 6914 37.69 802 787 162.6
A 12 194 5904 31.48 802 787 162.6
B 4 173 81434 528.06 810 790 152.7
B 15 35 73114 473.58 810 790 152.7
B 0 198 64433 416.74 810 790 152.7
C 14 238 120362 663.57 780 786 180.2
C 3 233 7747 38.63 780 786 180.2
C 13 61 5500 26.16 780 786 180.2
D 10 70 99056 529.1 779 760 185.8
D 1 52 87639 467.65 779 760 185.8
D 2 122 41776 220.78 779 760 185.8

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