ASTROSAT CZTI

Data Quality Report

Orbit 03300

Creation date: 2024-06-27T14:27:17.755142
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/AS1G05_228T02_9000000446_03300cztM0_level2.evt modeM0/AS1G05_228T02_9000000446_03300cztM0_level2_quad_clean.evt
Size (bytes)265,720,32033,664,320
Size253.4 MB 32.1 MB
Events in quadrant A1,820,136187,330
Events in quadrant B2,260,015191,920
Events in quadrant C1,914,133187,630
Events in quadrant D1,789,106179,159

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080510
B091010
C083260
D081360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3865451.164295%
B3865461.190168%
C3865280.724450%
D3865240.620957%

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 3865 3865 22 22 0.57% 0.57%
B 3865 3865 14 14 0.36% 0.36%
C 3865 3865 16 16 0.41% 0.41%
D 3865 3865 19 19 0.49% 0.49%

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 0 50 67730 716.91 453 444 93.9
A 0 118 5165 50.3 453 444 93.9
A 0 226 5126 49.88 453 444 93.9
B 15 204 364393 4023.47 465 455 90.5
B 2 249 85209 936.99 465 455 90.5
B 4 81 6463 66.42 465 455 90.5
C 1 16 86407 835.0 439 442 103.0
C 8 208 55522 535.01 439 442 103.0
C 6 80 28777 275.23 439 442 103.0
D 13 223 80442 760.88 432 419 105.2
D 13 239 34677 325.74 432 419 105.2
D 2 206 19776 184.05 432 419 105.2

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