ASTROSAT CZTI

Data Quality Report

Orbit 29499

Creation date: 2024-06-27T20:04:44.829366
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_064T03_9000004246_29499cztM0_level2.evt modeM0/AS1A10_064T03_9000004246_29499cztM0_level2_quad_clean.evt
Size (bytes)476,328,96084,709,440
Size454.3 MB 80.8 MB
Events in quadrant A1,961,644611,500
Events in quadrant B2,061,476628,778
Events in quadrant C2,414,382584,478
Events in quadrant D7,722,149463,078

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0780
C0780
D0780

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A082871
B085891
C098151
D0256391

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A392140.102015%
B3921120.306044%
C39211784.539658%
D3921180646.059679%

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 3921 3921 0 0 0.00% 0.00%
B 3921 3921 3 3 0.08% 0.08%
C 3921 3921 2 2 0.05% 0.05%
D 3921 3921 1916 1916 48.87% 48.87%

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 7963 73.97 507 498 100.9
A 3 137 4505 39.7 507 498 100.9
A 0 226 4180 36.48 507 498 100.9
B 5 172 33720 352.08 510 497 94.4
B 0 190 31551 329.09 510 497 94.4
B 12 111 10663 107.73 510 497 94.4
C 3 233 292609 2555.17 492 497 114.3
C 14 238 117204 1020.86 492 497 114.3
C 14 254 52774 457.28 492 497 114.3
D 8 195 4113671 40999.75 430 422 100.3
D 1 52 721249 7185.01 430 422 100.3
D 7 238 589918 5875.94 430 422 100.3

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