ASTROSAT CZTI

Data Quality Report

Orbit 12430

Creation date: 2024-06-27T16:27:13.101403
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/AS1A04_141T01_9000001848_12430cztM0_level2.evt modeM0/AS1A04_141T01_9000001848_12430cztM0_level2_quad_clean.evt
Size (bytes)498,628,80092,079,360
Size475.5 MB 87.8 MB
Events in quadrant A3,691,179587,442
Events in quadrant B3,714,146595,840
Events in quadrant C2,981,953592,874
Events in quadrant D4,265,908552,176

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152613
B0153302
C0133892
D0172062

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6598540.818430%
B65981432.167323%
C6598120.181873%
D65982003.031222%

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 7734 6599 15 15 0.19% 0.23%
B 7734 6599 85 85 1.10% 1.29%
C 7734 6600 0 0 0.00% 0.00%
D 7734 6600 228 228 2.95% 3.45%

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 13 251 413034 2583.33 781 766 159.6
A 1 162 94531 587.55 781 766 159.6
A 1 178 46879 288.95 781 766 159.6
B 4 239 387376 2596.65 784 766 148.9
B 3 64 81977 545.45 784 766 148.9
B 15 201 56700 375.68 784 766 148.9
C 13 61 5528 26.79 765 770 177.6
C 1 16 1884 6.27 765 770 177.6
C 3 202 1883 6.27 765 770 177.6
D 1 52 1229412 6957.69 739 717 176.6
D 7 80 94387 530.42 739 717 176.6
D 8 195 48284 269.36 739 717 176.6

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