ASTROSAT CZTI

Data Quality Report

Orbit 47064

Creation date: 2024-06-27T23:31:17.938072
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/AS1C09_005T01_9000006296_47064cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47064cztM0_level2_quad_clean.evt
Size (bytes)487,506,240115,004,160
Size464.9 MB 109.7 MB
Events in quadrant A6,919,818748,440
Events in quadrant B3,773,663780,627
Events in quadrant C3,126,627756,453
Events in quadrant D3,668,294696,384

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254362
B0160322
C0146382
D0159932

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71812483.453558%
B71811442.005292%
C7181560.779836%
D7182861.197438%

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 8781 7183 10 10 0.11% 0.14%
B 8781 7183 59 59 0.67% 0.82%
C 8781 7183 0 0 0.00% 0.00%
D 8782 7184 28 28 0.32% 0.39%

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 10 83 3816574 23253.52 788 772 164.1
A 13 248 22926 135.01 788 772 164.1
A 9 191 20130 117.97 788 772 164.1
B 3 112 288492 1840.31 792 766 156.3
B 5 255 145254 924.15 792 766 156.3
B 5 172 118988 756.15 792 766 156.3
C 5 250 20883 107.94 789 792 186.1
C 12 250 10349 51.34 789 792 186.1
C 3 160 9644 47.56 789 792 186.1
D 1 52 343489 1759.44 784 760 194.8
D 13 249 78959 401.44 784 760 194.8
D 12 233 76532 388.98 784 760 194.8

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