ASTROSAT CZTI

Data Quality Report

Orbit 13010

Creation date: 2024-06-27T16:35:02.537796
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/AS1T02_002T01_9000001914_13010cztM0_level2.evt modeM0/AS1T02_002T01_9000001914_13010cztM0_level2_quad_clean.evt
Size (bytes)478,560,960125,628,480
Size456.4 MB 119.8 MB
Events in quadrant A3,231,798854,496
Events in quadrant B4,705,748790,791
Events in quadrant C2,993,180873,524
Events in quadrant D3,117,092829,069

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139134
B0184622
C0134712
D0138722

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6546330.504125%
B654687613.382218%
C6546230.351360%
D6546360.549954%

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 7763 6549 3 3 0.04% 0.05%
B 7763 6548 497 497 6.40% 7.59%
C 7763 6549 1 1 0.01% 0.02%
D 7763 6549 11 11 0.14% 0.17%

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 12 189 157707 1009.59 774 759 155.5
A 15 223 30547 191.62 774 759 155.5
A 1 162 19951 123.46 774 759 155.5
B 4 239 1689357 12901.17 705 689 130.9
B 3 64 79748 604.0 705 689 130.9
B 0 219 59727 451.04 705 689 130.9
C 0 207 24083 134.03 758 763 174.0
C 14 234 11880 63.89 758 763 174.0
C 13 61 5524 27.36 758 763 174.0
D 1 52 215805 1223.36 745 727 175.8
D 8 195 64113 360.54 745 727 175.8
D 2 234 20003 109.64 745 727 175.8

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