ASTROSAT CZTI

Data Quality Report

Orbit 12344

Creation date: 2024-06-27T16:25:47.844758
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/AS1A04_130T01_9000001822_12344cztM0_level2.evt modeM0/AS1A04_130T01_9000001822_12344cztM0_level2_quad_clean.evt
Size (bytes)492,500,16066,954,240
Size469.7 MB 63.9 MB
Events in quadrant A4,722,188394,401
Events in quadrant B3,387,941403,071
Events in quadrant C3,054,590399,256
Events in quadrant D3,313,433380,914

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0184923
B0140562
C0132432
D0141952

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64461241.923674%
B6446530.822215%
C6446140.217189%
D6446701.085945%

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 7652 6448 24 24 0.31% 0.37%
B 7652 6448 14 14 0.18% 0.22%
C 7652 6448 0 0 0.00% 0.00%
D 7652 6448 50 50 0.65% 0.78%

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 904376 5589.65 800 784 161.7
A 13 251 291715 1799.71 800 784 161.7
A 1 162 181487 1117.83 800 784 161.7
B 4 239 126454 821.05 808 791 153.1
B 3 64 32596 207.81 808 791 153.1
B 0 197 27976 177.62 808 791 153.1
C 15 208 6472 31.56 781 789 180.1
C 13 61 5760 27.61 781 789 180.1
C 8 222 2503 9.52 781 789 180.1
D 1 52 186659 1016.42 772 753 182.9
D 10 253 52177 281.16 772 753 182.9
D 5 222 35393 189.39 772 753 182.9

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