ASTROSAT CZTI

Data Quality Report

Orbit 13289

Creation date: 2024-06-27T16:38:50.989695
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/AS1T02_013T01_9000001976_13289cztM0_level2.evt modeM0/AS1T02_013T01_9000001976_13289cztM0_level2_quad_clean.evt
Size (bytes)666,743,04079,649,280
Size635.9 MB 76.0 MB
Events in quadrant A3,176,179567,553
Events in quadrant B6,354,724324,016
Events in quadrant C3,325,696567,172
Events in quadrant D6,902,292505,233

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135433
B0229882
C0139282
D0248582

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6404310.484072%
B6404209032.635853%
C6404420.655840%
D64046009.369144%

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 7505 6406 1 1 0.01% 0.02%
B 7505 6405 1096 1096 14.60% 17.11%
C 7505 6406 17 17 0.23% 0.27%
D 7505 6406 516 516 6.88% 8.05%

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 8 15 60335 366.05 799 787 162.7
A 9 143 17374 101.96 799 787 162.7
A 1 162 14391 83.63 799 787 162.7
B 4 239 3944998 35370.81 581 570 111.5
B 10 245 64159 570.22 581 570 111.5
B 0 189 14049 120.87 581 570 111.5
C 15 208 276673 1524.48 781 789 181.0
C 13 61 5652 26.87 781 789 181.0
C 6 96 3427 14.58 781 789 181.0
D 1 52 2473699 13624.06 750 730 181.5
D 5 222 715278 3936.58 750 730 181.5
D 8 195 232957 1279.38 750 730 181.5

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