ASTROSAT CZTI

Data Quality Report

Orbit 23317

Creation date: 2024-06-27T18:52:42.865073
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/AS1A07_148T02_9000003444_23317cztM0_level2.evt modeM0/AS1A07_148T02_9000003444_23317cztM0_level2_quad_clean.evt
Size (bytes)476,124,48084,427,200
Size454.1 MB 80.5 MB
Events in quadrant A3,339,609544,054
Events in quadrant B3,319,924550,092
Events in quadrant C3,421,225525,820
Events in quadrant D3,922,317508,288

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136261
B0134741
C0138431
D0154121

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6137871.417631%
B6137821.336158%
C61371232.004237%
D61372904.725436%

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 7352 6137 0 0 0.00% 0.00%
B 7352 6137 2 2 0.03% 0.03%
C 7352 6137 3 3 0.04% 0.05%
D 7352 6137 220 220 2.99% 3.58%

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 6 16 39498 227.25 856 842 170.1
A 13 254 9857 53.0 856 842 170.1
A 0 226 7430 38.73 856 842 170.1
B 12 111 17962 109.65 838 818 156.4
B 11 111 16097 97.72 838 818 156.4
B 14 111 14168 85.38 838 818 156.4
C 14 238 131542 695.78 817 824 187.9
C 10 9 68068 357.92 817 824 187.9
C 0 239 19782 100.91 817 824 187.9
D 7 238 471126 2385.64 828 808 197.1
D 1 52 214948 1086.2 828 808 197.1
D 7 38 57496 287.54 828 808 197.1

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