ASTROSAT CZTI

Data Quality Report

Orbit 44484

Creation date: 2024-06-27T23:03:46.864582
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_072T03_9000006000_44484cztM0_level2.fits modeM0/AS1A13_072T03_9000006000_44484cztM0_level2_quad_clean.evt
Size (bytes)24,390,7204,973,760
Size23.3 MB 4.7 MB
Events in quadrant A198,91220,984
Events in quadrant B239,20440,362
Events in quadrant C229,48628,974
Events in quadrant D200,63623,714

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04935
B04527
C04634
D04937

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A075
B086
C072
D073

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A067055871
B049083865
C052384272
D061805349

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A30910.323625%
B48751.026694%
C420163.809524%
D36230.828729%

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 1432 452 0 0 0.00% 0.00%
B 3156 709 1 1 0.03% 0.14%
C 3140 630 12 12 0.38% 1.90%
D 2545 544 3 3 0.12% 0.55%

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 10 83 72859 8236.69 32 31 8.8
A 3 137 365 37.77 32 31 8.8
A 0 243 269 26.92 32 31 8.8
B 5 172 20012 1561.19 54 52 12.8
B 0 189 3134 241.06 54 52 12.8
B 12 111 1336 100.43 54 52 12.8
C 14 254 40489 3315.04 43 43 12.2
C 3 233 18295 1495.97 43 43 12.2
C 13 61 316 22.38 43 43 12.2
D 1 52 28813 2597.95 36 35 11.1
D 13 249 19800 1784.29 36 35 11.1
D 2 249 10924 983.01 36 35 11.1

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