ASTROSAT CZTI

Data Quality Report

Orbit 03580

Creation date: 2024-06-27T14:31:13.185775
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_045T01_9000000468_03580cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03580cztM0_level2_quad_clean.evt
Size (bytes)109,474,56024,215,040
Size104.4 MB 23.1 MB
Events in quadrant A666,488161,305
Events in quadrant B1,021,327159,489
Events in quadrant C673,906161,522
Events in quadrant D862,087152,380

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A028871
B039801
C028741
D034781

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1308221.681957%
B1308927.033639%
C1308191.452599%
D1308604.587156%

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 1558 1309 0 0 0.00% 0.00%
B 1558 1309 7 7 0.45% 0.53%
C 1558 1309 0 0 0.00% 0.00%
D 1558 1309 44 44 2.82% 3.36%

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 3 1 3833 97.07 170 165 37.8
A 0 118 2184 53.43 170 165 37.8
A 15 234 2144 52.37 170 165 37.8
B 15 204 277115 7800.78 172 167 35.5
B 5 172 43398 1217.69 172 167 35.5
B 3 0 9258 256.07 172 167 35.5
C 8 128 3129 70.78 170 169 41.8
C 1 16 1583 33.81 170 169 41.8
C 13 61 1427 30.08 170 169 41.8
D 14 34 119782 2865.78 166 160 41.7
D 13 70 35606 849.18 166 160 41.7
D 7 39 31995 762.67 166 160 41.7

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