ASTROSAT CZTI

Data Quality Report

Orbit 11732

Creation date: 2024-06-27T16:17:32.360061
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_006T02_9000001730_11732cztM0_level2.evt modeM0/AS1G08_006T02_9000001730_11732cztM0_level2_quad_clean.evt
Size (bytes)389,338,56075,458,880
Size371.3 MB 72.0 MB
Events in quadrant A3,244,041489,674
Events in quadrant B2,906,474494,178
Events in quadrant C2,088,177490,707
Events in quadrant D3,217,454465,018

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129661
B0118040
C099020
D0129700

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4927761.542521%
B4927771.562817%
C492720.040593%
D49271873.795413%

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 4928 4928 22 22 0.45% 0.45%
B 4928 4928 43 43 0.87% 0.87%
C 4928 4928 0 0 0.00% 0.00%
D 4928 4928 176 176 3.57% 3.57%

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 8 15 528558 4709.9 546 534 112.1
A 9 143 228721 2035.4 546 534 112.1
A 1 162 124177 1102.88 546 534 112.1
B 4 239 292681 2747.58 551 539 106.3
B 15 204 231392 2171.16 551 539 106.3
B 3 64 106202 993.76 551 539 106.3
C 12 4 5996 43.92 533 535 124.3
C 13 61 4002 27.88 533 535 124.3
C 8 222 2049 12.18 533 535 124.3
D 4 95 452929 3584.2 516 499 126.2
D 2 33 287329 2272.3 516 499 126.2
D 10 253 121989 962.46 516 499 126.2

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