ASTROSAT CZTI

Data Quality Report

Orbit 42703

Creation date: 2024-06-27T22:43:14.212174
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/AS1A05_013T01_9000005822_42703cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42703cztM0_level2_quad_clean.evt
Size (bytes)303,621,12089,377,920
Size289.6 MB 85.2 MB
Events in quadrant A3,007,774601,381
Events in quadrant B2,403,619614,682
Events in quadrant C2,609,115579,257
Events in quadrant D2,797,974533,372

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122192
B0109732
C0112462
D0122728

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0290
C0290
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5394320.593252%
B5394150.278087%
C5394290.537634%
D53931122.076766%

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 7156 5395 18 18 0.25% 0.33%
B 7156 5395 8 8 0.11% 0.15%
C 7156 5395 25 25 0.35% 0.46%
D 7155 5394 111 111 1.55% 2.06%

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 569414 4686.5 590 579 121.4
A 13 248 128398 1053.07 590 579 121.4
A 2 79 11777 92.26 590 579 121.4
B 5 255 51255 440.45 590 573 115.1
B 5 172 15401 128.86 590 573 115.1
B 12 111 14688 122.66 590 573 115.1
C 15 214 223681 1670.43 571 573 133.6
C 14 254 90842 675.85 571 573 133.6
C 3 233 39865 294.18 571 573 133.6
D 2 249 365395 2648.1 565 550 137.8
D 12 233 75163 541.55 565 550 137.8
D 5 171 41961 300.57 565 550 137.8

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