ASTROSAT CZTI

Data Quality Report

Orbit 29432

Creation date: 2024-06-27T20:04:06.452813
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_102T05_9000004232_29432cztM0_level2.evt modeM0/AS1A10_102T05_9000004232_29432cztM0_level2_quad_clean.evt
Size (bytes)871,231,68076,559,040
Size830.9 MB 73.0 MB
Events in quadrant A3,665,810461,498
Events in quadrant B3,862,882470,525
Events in quadrant C8,515,860437,766
Events in quadrant D9,836,441426,648

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155921
B0160941
C0306891
D0344741

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74881782.377137%
B74892182.910936%
C7489113615.168914%
D7489122016.290559%

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 7563 7490 0 0 0.00% 0.00%
B 7564 7491 7 7 0.09% 0.09%
C 7564 7491 400 400 5.29% 5.34%
D 7564 7491 811 811 10.72% 10.83%

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 13 254 14396 69.69 948 925 193.3
A 3 137 9541 44.57 948 925 193.3
A 0 226 8139 37.32 948 925 193.3
B 5 255 59666 319.16 937 911 184.1
B 0 229 35656 188.73 937 911 184.1
B 0 190 26897 141.16 937 911 184.1
C 3 233 4684672 22926.52 873 878 204.3
C 10 9 249533 1217.13 873 878 204.3
C 14 238 137450 668.5 873 878 204.3
D 8 195 3180995 14983.25 884 860 212.2
D 1 52 1690151 7959.12 884 860 212.2
D 13 104 1249180 5881.48 884 860 212.2

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