ASTROSAT CZTI

Data Quality Report

Orbit 01381

Creation date: 2024-06-27T14:11:50.048876
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/AS1G04_014T02_9000000232_01381cztM0_level2.evt modeM0/AS1G04_014T02_9000000232_01381cztM0_level2_quad_clean.evt
Size (bytes)1,214,170,56099,544,320
Size1.1 GB 94.9 MB
Events in quadrant A9,447,005643,127
Events in quadrant B10,304,098653,524
Events in quadrant C8,113,395640,860
Events in quadrant D8,453,458598,628

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0329792
B0354801
C0289281
D0300491

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68602313.367347%
B6860911.326531%
C6860280.408163%
D68604456.486880%

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 7190 6860 729 729 10.14% 10.63%
B 7190 6861 848 848 11.79% 12.36%
C 7190 6860 217 217 3.02% 3.16%
D 7190 6860 612 612 8.51% 8.92%

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 15 127 1188107 2285.81 2124 2137 518.8
A 4 32 88505 166.46 2124 2137 518.8
A 12 243 22425 39.1 2124 2137 518.8
B 8 4 1394206 2660.49 2195 2208 523.2
B 12 52 346244 657.55 2195 2208 523.2
B 15 22 139592 262.58 2195 2208 523.2
C 15 241 248416 442.41 1984 2053 556.9
C 7 222 39422 67.11 1984 2053 556.9
C 3 79 27885 46.39 1984 2053 556.9
D 13 73 1176456 2007.71 1872 1943 585.0
D 13 252 110357 185.32 1872 1943 585.0
D 9 64 53151 87.53 1872 1943 585.0

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