ASTROSAT CZTI

Data Quality Report

Orbit 03525

Creation date: 2024-06-27T14:30:31.045109
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_045T01_9000000468_03525cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03525cztM0_level2_quad_clean.evt
Size (bytes)426,245,76076,164,480
Size406.5 MB 72.6 MB
Events in quadrant A2,969,051468,932
Events in quadrant B3,321,985472,454
Events in quadrant C3,186,298467,985
Events in quadrant D3,003,439457,712

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134383
B0139672
C0139452
D0137322

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62891893.005247%
B62891893.005247%
C62891402.226109%
D62891512.401018%

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 7049 6289 8 8 0.11% 0.13%
B 7049 6289 4 4 0.06% 0.06%
C 7049 6290 15 15 0.21% 0.24%
D 7049 6289 35 35 0.50% 0.56%

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 50 179916 1195.09 720 699 150.0
A 8 15 10308 64.08 720 699 150.0
A 12 194 7781 47.23 720 699 150.0
B 15 204 256763 1770.49 731 711 144.6
B 15 85 83793 574.48 731 711 144.6
B 14 167 37742 256.05 731 711 144.6
C 4 248 283176 1693.0 705 706 166.8
C 1 192 114182 680.12 705 706 166.8
C 15 208 22249 129.12 705 706 166.8
D 5 233 120575 705.39 700 679 170.0
D 2 31 106706 623.8 700 679 170.0
D 13 223 64158 373.47 700 679 170.0

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