ASTROSAT CZTI

Data Quality Report

Orbit 01389

Creation date: 2024-06-27T14:11:57.172004
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_01389cztM0_level2.evt modeM0/AS1G04_014T02_9000000232_01389cztM0_level2_quad_clean.evt
Size (bytes)1,116,538,56099,216,000
Size1.0 GB 94.6 MB
Events in quadrant A9,951,275627,178
Events in quadrant B8,082,304666,342
Events in quadrant C7,392,953654,101
Events in quadrant D7,976,525622,416

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340153
B0284392
C0263692
D0281922

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62284397.048812%
B6228711.140013%
C6228130.208735%
D62282463.949904%

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 7498 6228 1216 1216 16.22% 19.52%
B 7498 6228 367 367 4.89% 5.89%
C 7498 6229 179 179 2.39% 2.87%
D 7498 6228 670 670 8.94% 10.76%

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 2848625 6509.35 1842 1856 437.3
A 4 32 11305 21.61 1842 1856 437.3
A 0 253 10454 19.66 1842 1856 437.3
B 8 4 285663 614.04 1981 1988 462.0
B 5 191 88978 188.3 1981 1988 462.0
B 12 52 88671 187.63 1981 1988 462.0
C 15 241 214366 420.11 1828 1894 505.7
C 3 111 18706 33.24 1828 1894 505.7
C 3 79 12871 21.7 1828 1894 505.7
D 13 73 1003745 1927.63 1723 1782 519.8
D 9 53 158852 302.18 1723 1782 519.8
D 1 83 136349 258.89 1723 1782 519.8

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