ASTROSAT CZTI

Data Quality Report

Orbit 47402

Creation date: 2024-07-04T02:16:28.303147
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/AS1A13_053T01_9000006326_47402cztM0_level2.fits modeM0/AS1A13_053T01_9000006326_47402cztM0_level2_quad_clean.evt
Size (bytes)491,981,760108,754,560
Size469.2 MB 103.7 MB
Events in quadrant A6,888,500715,477
Events in quadrant B3,180,697769,810
Events in quadrant C4,114,633699,048
Events in quadrant D3,533,832664,349

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0246292
B0137552
C0168472
D0150032

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63664406.911719%
B6366570.895382%
C63663585.623626%
D63651201.885310%

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 7616 6366 172 172 2.26% 2.70%
B 7616 6366 5 5 0.07% 0.08%
C 7616 6367 311 311 4.08% 4.88%
D 7615 6366 104 104 1.37% 1.63%

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 10 83 3760827 25057.3 724 709 150.1
A 9 191 291361 1936.9 724 709 150.1
A 9 240 13171 83.05 724 709 150.1
B 5 255 125404 876.6 736 715 142.2
B 0 190 43277 299.22 736 715 142.2
B 0 198 28663 196.48 736 715 142.2
C 12 2 1359481 8245.45 701 704 164.8
C 0 207 12749 73.09 701 704 164.8
C 13 61 4844 25.12 701 704 164.8
D 2 165 411820 2345.27 711 690 175.3
D 2 249 231155 1314.67 711 690 175.3
D 7 38 73240 413.86 711 690 175.3

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