ASTROSAT CZTI

Data Quality Report

Orbit 38330

Creation date: 2024-06-27T21:51:20.419770
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/AS1A10_094T24_9000005374_38330cztM0_level2.fits modeM0/AS1A10_094T24_9000005374_38330cztM0_level2_quad_clean.evt
Size (bytes)498,202,56082,912,320
Size475.1 MB 79.1 MB
Events in quadrant A2,694,679630,060
Events in quadrant B2,993,020634,144
Events in quadrant C2,441,855610,366
Events in quadrant D9,929,659290,838

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110002
B0121261
C0102161
D0328821

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4923120.243754%
B49231132.295348%
C4923130.264067%
D4923247550.274223%

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 6897 4924 3 3 0.04% 0.06%
B 6897 4924 72 72 1.04% 1.46%
C 6897 4924 10 10 0.14% 0.20%
D 6896 4923 2642 2642 38.31% 53.67%

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 10 83 344241 2952.23 580 571 116.4
A 12 189 67540 575.28 580 571 116.4
A 13 6 19921 166.22 580 571 116.4
B 5 184 256501 2395.28 573 559 106.9
B 0 229 181519 1693.55 573 559 106.9
B 0 186 103813 966.32 573 559 106.9
C 15 214 203908 1577.08 558 561 128.9
C 0 10 20308 153.15 558 561 128.9
C 14 254 19510 146.96 558 561 128.9
D 10 203 5961196 51279.11 473 458 116.2
D 2 16 613347 5272.57 473 458 116.2
D 1 20 602707 5181.03 473 458 116.2

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