ASTROSAT CZTI

Data Quality Report

Orbit 07517

Creation date: 2024-06-27T15:20:45.938533
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/AS1A02_134T01_9000001036_07517cztM0_level2.evt modeM0/AS1A02_134T01_9000001036_07517cztM0_level2_quad_clean.evt
Size (bytes)257,607,36054,861,120
Size245.7 MB 52.3 MB
Events in quadrant A1,793,463351,511
Events in quadrant B1,917,422355,849
Events in quadrant C1,805,427343,907
Events in quadrant D2,011,579327,517

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A082172
B085471
C082651
D089061

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4007100.249563%
B4007230.573996%
C4007190.474170%
D4007551.372598%

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 4267 4009 0 0 0.00% 0.00%
B 4267 4009 1 1 0.02% 0.02%
C 4267 4009 2 2 0.05% 0.05%
D 4267 4009 32 32 0.75% 0.80%

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 14 4728 43.84 463 452 97.5
A 0 226 4461 41.11 463 452 97.5
A 12 194 4045 36.84 463 452 97.5
B 0 214 73360 801.7 470 458 90.9
B 0 219 11984 126.75 470 458 90.9
B 12 111 8540 88.88 470 458 90.9
C 9 68 35811 335.9 449 448 105.3
C 8 229 14910 137.37 449 448 105.3
C 13 61 3394 27.98 449 448 105.3
D 2 14 121725 1095.37 444 429 110.7
D 2 152 69565 624.34 444 429 110.7
D 5 184 47893 428.63 444 429 110.7

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