ASTROSAT CZTI

Data Quality Report

Orbit 25623

Creation date: 2024-06-27T19:19:39.963162
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/AS1A07_127T03_9000003732_25623cztM0_level2.evt modeM0/AS1A07_127T03_9000003732_25623cztM0_level2_quad_clean.evt
Size (bytes)873,181,440153,578,880
Size832.7 MB 146.5 MB
Events in quadrant A6,280,927971,948
Events in quadrant B5,821,919998,675
Events in quadrant C5,778,561943,528
Events in quadrant D7,776,694932,672

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0255450
B0243750
C0242620
D0307330

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A116272291.969554%
B116282301.977984%
C116282432.089783%
D116282742.356381%

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 13462 11630 21 21 0.16% 0.18%
B 13463 11631 5 5 0.04% 0.04%
C 13463 11631 0 0 0.00% 0.00%
D 13463 11631 100 100 0.74% 0.86%

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 13 245474 820.18 1485 1456 297.5
A 8 192 239119 798.82 1485 1456 297.5
A 6 16 58393 191.37 1485 1456 297.5
B 12 111 34312 116.61 1472 1436 281.9
B 11 111 31489 106.6 1472 1436 281.9
B 0 190 28453 95.83 1472 1436 281.9
C 14 238 226167 675.0 1420 1433 332.9
C 3 233 21422 60.04 1420 1433 332.9
C 13 61 9745 24.97 1420 1433 332.9
D 1 52 1228354 3214.01 1435 1409 381.7
D 8 195 577208 1508.32 1435 1409 381.7
D 2 244 491926 1284.92 1435 1409 381.7

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