ASTROSAT CZTI

Data Quality Report

Orbit 07228

Creation date: 2024-06-27T15:17:33.872212
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/AS1G06_036T01_9000000988_07228cztM0_level2.evt modeM0/AS1G06_036T01_9000000988_07228cztM0_level2_quad_clean.evt
Size (bytes)580,547,52084,251,520
Size553.7 MB 80.3 MB
Events in quadrant A4,079,607485,533
Events in quadrant B4,189,531499,382
Events in quadrant C4,272,625498,980
Events in quadrant D4,462,286476,288

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0177733
B0179892
C0183352
D0191872

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01720
D01720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A85083363.949224%
B85083824.489892%
C85081942.280207%
D85082663.126469%

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 8798 8508 0 0 0.00% 0.00%
B 8798 8509 5 5 0.06% 0.06%
C 8798 8508 9 9 0.10% 0.11%
D 8798 8509 37 37 0.42% 0.43%

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 81093 374.33 1032 1003 214.0
A 13 14 11760 50.28 1032 1003 214.0
A 0 226 9770 40.98 1032 1003 214.0
B 0 214 53097 255.52 1042 1013 203.8
B 10 16 45657 219.02 1042 1013 203.8
B 4 81 43712 209.47 1042 1013 203.8
C 9 68 276514 1143.97 1017 1018 240.8
C 9 243 20098 79.23 1017 1018 240.8
C 13 61 7737 27.9 1017 1018 240.8
D 2 216 347399 1395.17 1010 976 248.3
D 2 14 213447 855.7 1010 976 248.3
D 14 34 93409 372.26 1010 976 248.3

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