ASTROSAT CZTI

Data Quality Report

Orbit 11150

Creation date: 2024-06-27T16:09:10.262329
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/AS1A04_145T03_9000001624_11150cztM0_level2.evt modeM0/AS1A04_145T03_9000001624_11150cztM0_level2_quad_clean.evt
Size (bytes)326,571,84029,632,320
Size311.4 MB 28.3 MB
Events in quadrant A2,712,507158,883
Events in quadrant B2,760,778159,561
Events in quadrant C1,856,539161,385
Events in quadrant D2,306,694153,434

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0784
B0780
C0786
D0782

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010894419
B011085423
C08278193
D09749406

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A37063459.309228%
B370938910.488002%
C37352225.943775%
D37103088.301887%

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 3922 3742 29 29 0.74% 0.77%
B 3922 3749 88 88 2.24% 2.35%
C 3922 3766 0 0 0.00% 0.00%
D 3922 3751 44 44 1.12% 1.17%

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 5 698696 6965.1 479 466 100.2
A 14 238 98788 980.8 479 466 100.2
A 8 15 50544 499.55 479 466 100.2
B 4 239 718337 7615.76 468 457 94.3
B 15 204 65555 690.6 468 457 94.3
B 4 80 55214 580.9 468 457 94.3
C 13 61 3620 27.82 473 474 113.1
C 8 128 3235 24.42 473 474 113.1
C 5 128 2872 21.21 473 474 113.1
D 1 52 206417 1805.99 465 452 114.0
D 10 253 107948 942.57 465 452 114.0
D 13 152 66920 582.82 465 452 114.0

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