ASTROSAT CZTI

Data Quality Report

Orbit 06088

Creation date: 2024-06-27T15:02:33.404927
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_028T03_9000000788_06088cztM0_level2.evt modeM0/AS1A02_028T03_9000000788_06088cztM0_level2_quad_clean.evt
Size (bytes)2,463,963,840408,286,080
Size2.3 GB 389.4 MB
Events in quadrant A16,131,1852,571,641
Events in quadrant B20,289,0482,511,412
Events in quadrant C14,905,1552,575,639
Events in quadrant D21,043,6392,414,310

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07075667
B08285073
C06858255
D086735118

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06780
B06780
C06782
D06780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A333536191.855905%
B3335221116.329456%
C333593260.977248%
D3334815394.614969%

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 35201 33385 125 125 0.36% 0.37%
B 35201 33384 1021 1021 2.90% 3.06%
C 35201 33385 44 44 0.12% 0.13%
D 35201 33379 1198 1198 3.40% 3.59%

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 1009384 1294.45 3817 3723 776.9
A 0 31 281801 357.93 3817 3723 776.9
A 4 2 83578 102.79 3817 3723 776.9
B 3 64 5006458 6944.76 3776 3680 720.4
B 4 81 276620 378.89 3776 3680 720.4
B 0 219 170616 231.74 3776 3680 720.4
C 9 54 225634 256.7 3729 3736 864.4
C 1 16 107666 120.23 3729 3736 864.4
C 13 61 29807 30.16 3729 3736 864.4
D 11 241 6085461 6726.07 3683 3567 904.2
D 5 190 224293 244.1 3683 3567 904.2
D 5 239 177054 191.86 3683 3567 904.2

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