ASTROSAT CZTI

Data Quality Report

Orbit 03504

Creation date: 2024-06-27T14:30:15.933273
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/AS1G05_192T01_9000000466_03504cztM0_level2.evt modeM0/AS1G05_192T01_9000000466_03504cztM0_level2_quad_clean.evt
Size (bytes)405,861,12082,851,840
Size387.1 MB 79.0 MB
Events in quadrant A3,179,071519,705
Events in quadrant B3,045,910528,530
Events in quadrant C2,892,968527,226
Events in quadrant D2,761,352510,445

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134822
B0130521
C0127221
D0126681

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60621252.062026%
B6062711.171231%
C6062681.121742%
D6062751.237215%

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 7262 6063 56 56 0.77% 0.92%
B 7262 6063 3 3 0.04% 0.05%
C 7262 6063 4 4 0.06% 0.07%
D 7262 6063 16 16 0.22% 0.26%

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 50 257874 1777.96 708 692 144.6
A 8 15 155100 1067.46 708 692 144.6
A 14 238 31509 213.05 708 692 144.6
B 15 204 155088 1099.35 726 709 140.4
B 4 172 25093 173.64 726 709 140.4
B 4 200 24737 171.11 726 709 140.4
C 1 192 55206 332.31 705 709 164.0
C 1 16 39151 234.41 705 709 164.0
C 15 208 36593 218.81 705 709 164.0
D 13 223 67242 400.72 696 678 166.1
D 7 46 25543 149.69 696 678 166.1
D 5 233 16181 93.33 696 678 166.1

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