ASTROSAT CZTI

Data Quality Report

Orbit 06223

Creation date: 2024-06-27T15:04:21.898957
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_046T01_9000000814_06223cztM0_level2.evt modeM0/AS1A02_046T01_9000000814_06223cztM0_level2_quad_clean.evt
Size (bytes)420,808,320125,737,920
Size401.3 MB 119.9 MB
Events in quadrant A3,208,368851,116
Events in quadrant B3,151,101862,511
Events in quadrant C2,942,619841,550
Events in quadrant D3,013,824813,958

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135132
B0133271
C0128671
D0130591

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62871221.940512%
B62871001.590584%
C6287771.224749%
D6287841.336090%

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 7562 6287 22 22 0.29% 0.35%
B 7562 6287 6 6 0.08% 0.10%
C 7562 6287 0 0 0.00% 0.00%
D 7562 6287 4 4 0.05% 0.06%

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 122499 782.12 775 759 155.7
A 0 31 75919 482.86 775 759 155.7
A 15 239 9034 53.16 775 759 155.7
B 0 219 65373 446.96 775 757 144.6
B 15 204 38151 258.66 775 757 144.6
B 0 214 19393 128.91 775 757 144.6
C 13 61 5919 30.34 751 755 170.2
C 1 16 5433 27.49 751 755 170.2
C 14 67 3854 18.21 751 755 170.2
D 2 63 37179 199.0 758 733 183.1
D 2 136 36743 196.62 758 733 183.1
D 2 14 22047 116.37 758 733 183.1

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