ASTROSAT CZTI

Data Quality Report

Orbit 06232

Creation date: 2024-06-27T15:04:30.359647
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_151T01_9000000818_06232cztM0_level2.evt modeM0/AS1A02_151T01_9000000818_06232cztM0_level2_quad_clean.evt
Size (bytes)40,109,7605,777,280
Size38.3 MB 5.5 MB
Events in quadrant A293,47434,525
Events in quadrant B283,07933,209
Events in quadrant C279,46934,492
Events in quadrant D315,82224,142

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03523
B03519
C03622
D03519

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A073
B072
C072
D072

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032862056
B034112209
C032091992
D040762806

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A591203.384095%
B580193.275862%
C596172.852349%
D511193.718200%

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 2330 854 0 0 0.00% 0.00%
B 2330 825 0 0 0.00% 0.00%
C 2328 840 0 0 0.00% 0.00%
D 2330 733 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 8 15 10005 591.36 70 68 16.8
A 15 236 8646 510.49 70 68 16.8
A 15 239 1277 71.95 70 68 16.8
B 4 81 5914 372.54 70 68 15.7
B 3 64 4124 258.47 70 68 15.7
B 12 111 1434 87.05 70 68 15.7
C 13 61 549 25.81 71 71 18.5
C 12 222 304 12.58 71 71 18.5
C 9 54 218 7.94 71 71 18.5
D 2 63 78568 4672.55 60 58 16.8
D 2 136 3120 182.24 60 58 16.8
D 12 110 2567 149.32 60 58 16.8

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