ASTROSAT CZTI

Data Quality Report

Orbit 03414

Creation date: 2024-06-27T14:28:40.963646
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/AS1G05_210T01_9000000454_03414cztM0_level2.evt modeM0/AS1G05_210T01_9000000454_03414cztM0_level2_quad_clean.evt
Size (bytes)484,943,04082,152,000
Size462.5 MB 78.3 MB
Events in quadrant A3,015,363517,376
Events in quadrant B3,984,083515,968
Events in quadrant C4,295,299507,963
Events in quadrant D2,958,305500,772

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134733
B0163602
C0169432
D0134542

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6384741.159148%
B63841181.848371%
C63842143.352130%
D6384570.892857%

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 7579 6385 7 7 0.09% 0.11%
B 7579 6385 44 44 0.58% 0.69%
C 7579 6385 160 160 2.11% 2.51%
D 7579 6385 16 16 0.21% 0.25%

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 0 118 65668 416.79 763 747 155.8
A 0 226 13782 83.68 763 747 155.8
A 12 194 8231 48.05 763 747 155.8
B 15 204 730190 4949.65 768 749 147.4
B 14 167 177800 1201.38 768 749 147.4
B 7 252 51899 347.08 768 749 147.4
C 1 192 706167 4089.55 741 745 172.5
C 7 220 419367 2426.88 741 745 172.5
C 8 208 180123 1039.91 741 745 172.5
D 9 85 51877 281.31 743 724 181.8
D 13 223 40243 217.33 743 724 181.8
D 12 246 24411 130.26 743 724 181.8

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