ASTROSAT CZTI

Data Quality Report

Orbit 06153

Creation date: 2024-06-27T15:03:28.309294
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_199T01_9000000800_06153cztM0_level2.evt modeM0/AS1A02_199T01_9000000800_06153cztM0_level2_quad_clean.evt
Size (bytes)420,739,200102,401,280
Size401.2 MB 97.7 MB
Events in quadrant A3,018,131672,830
Events in quadrant B3,466,933679,484
Events in quadrant C2,861,693668,849
Events in quadrant D2,959,459633,221

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133553
B0146822
C0130602
D0134962

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6407230.358982%
B6407941.467145%
C6407310.483846%
D6408330.514981%

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 7507 6408 3 3 0.04% 0.05%
B 7507 6408 52 52 0.69% 0.81%
C 7507 6408 0 0 0.00% 0.00%
D 7508 6409 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 132779 891.59 737 722 148.1
A 0 50 36959 244.66 737 722 148.1
A 12 194 7231 43.95 737 722 148.1
B 3 64 349556 2494.18 743 726 139.9
B 0 219 93616 664.17 743 726 139.9
B 15 204 85444 605.74 743 726 139.9
C 1 16 9534 52.14 730 732 168.8
C 13 61 5821 30.14 730 732 168.8
C 8 222 3081 13.91 730 732 168.8
D 13 169 136974 774.64 722 699 175.9
D 5 97 45334 253.72 722 699 175.9
D 8 195 17698 96.63 722 699 175.9

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