ASTROSAT CZTI

Data Quality Report

Orbit 48111

Creation date: 2024-08-21T09:09:40.614406
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/AS1A13_071T03_9000006400_48111cztM0_level2.fits modeM0/AS1A13_071T03_9000006400_48111cztM0_level2_quad_clean.evt
Size (bytes)132,719,04025,862,400
Size126.6 MB 24.7 MB
Events in quadrant A2,106,308217,689
Events in quadrant B359,8503,655
Events in quadrant C894,819218,236
Events in quadrant D1,391,753197,506

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A079690
B021730
C041270
D054850

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1996231.152305%
B19971997100.000000%
C199720.100150%
D1997452.253380%

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 1996 1996 2 2 0.10% 0.10%
B 1996 1996 2 2 0.10% 0.10%
C 1997 1997 2 2 0.10% 0.10%
D 1997 1997 53 53 2.65% 2.65%

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 1234867 25581.95 222 217 48.3
A 13 248 11621 236.29 222 217 48.3
A 13 254 3973 77.82 222 217 48.3
B 2 177 274942 58374.09 14 13 4.7
B 5 32 13176 2794.82 14 13 4.7
B 5 255 8463 1794.14 14 13 4.7
C 12 250 55556 1063.26 213 214 52.0
C 14 254 5949 110.18 213 214 52.0
C 13 61 1473 24.19 213 214 52.0
D 7 67 319538 5805.26 215 208 55.0
D 2 165 130771 2373.57 215 208 55.0
D 2 37 59650 1080.62 215 208 55.0

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