ASTROSAT CZTI

Data Quality Report

Orbit 04510

Creation date: 2024-06-27T14:43:05.406127
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/AS1G05_083T03_9000000566_04510cztM0_level2.evt modeM0/AS1G05_083T03_9000000566_04510cztM0_level2_quad_clean.evt
Size (bytes)9,218,8802,531,520
Size8.8 MB 2.4 MB
Events in quadrant A62,73613,892
Events in quadrant B73,14815,190
Events in quadrant C57,54513,837
Events in quadrant D72,75815,233

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126122
B0130126
C0130130
D0128124

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01447814199
B01365513338
C01288112604
D01605815741

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A055
B066
C044
D066

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A13700.000000%
B15400.000000%
C13900.000000%
D15200.000000%

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 7640 252 0 0 0.00% 0.00%
B 7657 282 0 0 0.00% 0.00%
C 7610 255 0 0 0.00% 0.00%
D 7654 291 0 0 0.00% 0.00%

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 0 118 3274 668.8 14 14 4.9
A 0 13 1715 348.97 14 14 4.9
A 0 50 847 170.89 14 14 4.9
B 15 204 4527 864.92 16 16 5.2
B 8 3 1868 355.09 16 16 5.2
B 14 167 838 157.61 16 16 5.2
C 14 48 365 69.82 14 14 5.0
C 9 16 235 43.96 14 14 5.0
C 13 61 121 21.28 14 14 5.0
D 11 132 4400 788.47 16 15 5.6
D 14 34 2101 375.08 16 15 5.6
D 2 63 1348 239.69 16 15 5.6

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