ASTROSAT CZTI

Data Quality Report

Orbit 03932

Creation date: 2024-06-27T14:35:23.837358
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_172T01_9000000502_03932cztM0_level2.evt modeM0/AS1G05_172T01_9000000502_03932cztM0_level2_quad_clean.evt
Size (bytes)586,008,00073,814,400
Size558.9 MB 70.4 MB
Events in quadrant A3,575,012455,399
Events in quadrant B4,923,221438,492
Events in quadrant C2,838,626453,369
Events in quadrant D5,964,024427,598

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150292
B0189561
C0134241
D0224111

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6597440.666970%
B65972844.304987%
C6597110.166742%
D65974967.518569%

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 7597 6598 11 11 0.14% 0.17%
B 7597 6598 154 154 2.03% 2.33%
C 7597 6598 5 5 0.07% 0.08%
D 7597 6598 509 509 6.70% 7.71%

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 549251 3597.99 740 724 152.5
A 0 118 100236 652.74 740 724 152.5
A 0 50 37039 238.2 740 724 152.5
B 3 0 1253077 8756.71 736 718 143.0
B 10 16 487224 3401.73 736 718 143.0
B 15 204 157417 1095.67 736 718 143.0
C 14 234 37599 224.1 708 711 164.6
C 7 222 16584 96.43 708 711 164.6
C 12 4 10603 60.09 708 711 164.6
D 9 82 1622172 9656.17 688 667 167.9
D 2 63 772045 4593.61 688 667 167.9
D 2 232 733239 4362.52 688 667 167.9

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
Veto Counter