ASTROSAT CZTI

Data Quality Report

Orbit 22564

Creation date: 2024-06-27T18:42:50.918001
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_148T05_9000003346_22564cztM0_level2.evt modeM0/AS1A07_148T05_9000003346_22564cztM0_level2_quad_clean.evt
Size (bytes)503,055,36077,345,280
Size479.8 MB 73.8 MB
Events in quadrant A3,416,939477,714
Events in quadrant B3,514,991487,739
Events in quadrant C3,510,826469,611
Events in quadrant D4,360,187462,546

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142342
B0144542
C0144462
D0173352

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63741041.631628%
B63741091.710072%
C63741422.227800%
D63742373.718230%

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 7574 6375 0 0 0.00% 0.00%
B 7574 6375 5 5 0.07% 0.08%
C 7574 6375 0 0 0.00% 0.00%
D 7574 6375 133 133 1.76% 2.09%

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 13 254 10785 56.5 886 870 175.5
A 0 226 7522 37.9 886 870 175.5
A 3 137 6874 34.21 886 870 175.5
B 15 33 52313 316.2 874 857 162.7
B 12 111 19149 112.41 874 857 162.7
B 0 190 18944 111.15 874 857 162.7
C 14 238 136217 679.7 856 862 199.1
C 0 10 13254 62.23 856 862 199.1
C 8 128 11243 52.13 856 862 199.1
D 1 52 798879 3851.15 864 842 207.2
D 13 172 150978 724.52 864 842 207.2
D 7 223 104837 501.86 864 842 207.2

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