ASTROSAT CZTI

Data Quality Report

Orbit 25382

Creation date: 2024-06-27T19:17:01.972281
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/AS1A09_104T01_9000003710_25382cztM0_level2.evt modeM0/AS1A09_104T01_9000003710_25382cztM0_level2_quad_clean.evt
Size (bytes)222,140,16062,625,600
Size211.8 MB 59.7 MB
Events in quadrant A1,511,999426,563
Events in quadrant B1,539,358424,432
Events in quadrant C1,549,368407,523
Events in quadrant D1,896,694399,779

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069260
B069490
C069390
D080460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3360511.517857%
B3360611.815476%
C3360692.053571%
D33611394.135674%

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 3700 3361 0 0 0.00% 0.00%
B 3700 3361 2 2 0.05% 0.06%
C 3700 3361 0 0 0.00% 0.00%
D 3701 3362 76 76 2.05% 2.26%

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 6 16 6579 77.68 389 382 79.8
A 13 254 5163 59.93 389 382 79.8
A 3 137 3616 40.54 389 382 79.8
B 12 111 9171 115.0 388 378 76.5
B 11 111 8171 101.92 388 378 76.5
B 14 111 7413 92.01 388 378 76.5
C 14 238 60656 664.27 379 381 90.7
C 0 207 5572 57.21 379 381 90.7
C 5 112 3766 37.3 379 381 90.7
D 7 238 288370 3105.17 374 365 92.8
D 8 195 67483 723.64 374 365 92.8
D 9 35 58359 625.27 374 365 92.8

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