ASTROSAT CZTI

Data Quality Report

Orbit 20240203_A13_049T05_9000006050_level2

Creation date: 2024-02-06T14:15:38.571198
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/AS1A13_049T05_9000006050cztM0_level2.fits modeM0/AS1A13_049T05_9000006050cztM0_level2_quad_clean.evt
Size (bytes)955,969,920899,881,920
Size911.7 MB 858.2 MB
Events in quadrant A5,600,6805,131,668
Events in quadrant B5,525,6085,366,210
Events in quadrant C5,829,7145,159,266
Events in quadrant D4,705,8064,312,336

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03481080
B02510440
C02258110
D03451420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01550
B01550
C01550
D01550

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A021620
B021620
C021620
D021620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10625248624.575914%
B10625426332.478024%
C10625412811.205602%
D106256104149.800858%

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 121735 106212 0 0 0.00% 0.00%
B 121735 106244 0 0 0.00% 0.00%
C 121736 106237 0 0 0.00% 0.00%
D 121736 106084 0 0 0.00% 0.00%

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 7 110 4646 8.95 1459 1358 367.3
A 0 29 4380 8.23 1459 1358 367.3
A 15 236 4354 8.16 1459 1358 367.3
B 2 9 5195 13.23 1462 1389 287.6
B 2 8 4134 9.55 1462 1389 287.6
B 3 17 3976 9.0 1462 1389 287.6
C 1 81 4457 7.61 1542 1433 397.5
C 3 202 4440 7.56 1542 1433 397.5
C 1 80 4355 7.35 1542 1433 397.5
D 10 189 3521 6.18 1355 1233 370.2
D 15 47 3484 6.08 1355 1233 370.2
D 3 14 3353 5.73 1355 1233 370.2

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