ASTROSAT CZTI

Data Quality Report

Orbit 29354

Creation date: 2024-06-27T20:03:07.953481
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/AS1T03_279T01_9000004218_29354cztM0_level2.evt modeM0/AS1T03_279T01_9000004218_29354cztM0_level2_quad_clean.evt
Size (bytes)649,661,760103,420,800
Size619.6 MB 98.6 MB
Events in quadrant A3,336,112701,060
Events in quadrant B3,391,612708,718
Events in quadrant C5,209,232671,790
Events in quadrant D7,322,849621,356

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134881
B0137181
C0199792
D0261101

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6143360.586033%
B6144540.878906%
C61431933.141787%
D6143136122.155299%

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 7388 6144 3 3 0.04% 0.05%
B 7389 6145 4 4 0.05% 0.07%
C 7388 6144 4 4 0.05% 0.07%
D 7388 6144 841 841 11.38% 13.69%

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 13 68515 407.71 839 823 166.0
A 1 113 31362 183.94 839 823 166.0
A 13 254 12972 73.17 839 823 166.0
B 10 245 71284 462.11 827 810 152.5
B 0 189 42731 274.89 827 810 152.5
B 12 111 17384 108.68 827 810 152.5
C 3 233 1351093 7096.39 815 821 190.3
C 10 9 497963 2612.74 815 821 190.3
C 14 238 133297 696.23 815 821 190.3
D 1 52 2056544 11818.13 732 714 174.0
D 7 80 1292722 7427.23 732 714 174.0
D 13 104 788121 4526.48 732 714 174.0

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