ASTROSAT CZTI

Data Quality Report

Orbit 25297

Creation date: 2024-06-27T19:16:03.578339
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/AS1A09_022T01_9000003702_25297cztM0_level2.evt modeM0/AS1A09_022T01_9000003702_25297cztM0_level2_quad_clean.evt
Size (bytes)537,926,40080,095,680
Size513.0 MB 76.4 MB
Events in quadrant A3,276,806509,941
Events in quadrant B3,305,968513,719
Events in quadrant C3,227,470487,351
Events in quadrant D6,026,563447,057

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138940
B0139850
C0137980
D0224260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6699731.089715%
B6699941.403195%
C66991031.537543%
D669968410.210479%

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 8594 6701 0 0 0.00% 0.00%
B 8594 6701 3 3 0.03% 0.04%
C 8594 6701 0 0 0.00% 0.00%
D 8594 6701 530 530 6.17% 7.91%

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 54214 320.79 835 818 166.4
A 13 254 11189 62.31 835 818 166.4
A 3 137 7518 40.25 835 818 166.4
B 0 190 25008 153.75 827 807 157.4
B 12 111 19113 116.3 827 807 157.4
B 11 111 17005 102.91 827 807 157.4
C 14 238 127824 689.19 792 797 184.3
C 3 233 7478 36.25 792 797 184.3
C 13 61 5613 26.13 792 797 184.3
D 1 52 2356709 12492.53 774 750 188.6
D 12 233 442792 2343.94 774 750 188.6
D 8 195 164074 866.03 774 750 188.6

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