ASTROSAT CZTI

Data Quality Report

Orbit 06359

Creation date: 2024-06-27T15:06:09.707420
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/AS1A02_124T01_9000000842_06359cztM0_level2.evt modeM0/AS1A02_124T01_9000000842_06359cztM0_level2_quad_clean.evt
Size (bytes)491,169,60099,478,080
Size468.4 MB 94.9 MB
Events in quadrant A3,582,800632,301
Events in quadrant B3,528,978636,794
Events in quadrant C3,309,332626,172
Events in quadrant D3,953,290604,442

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155142
B0155511
C0150441
D0167151

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7368330.447883%
B7368580.787188%
C7368170.230727%
D7368821.112921%

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 7648 7370 3 3 0.04% 0.04%
B 7648 7370 11 11 0.14% 0.15%
C 7648 7370 0 0 0.00% 0.00%
D 7648 7370 57 57 0.75% 0.77%

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 15 236 268629 1561.68 836 818 171.5
A 13 251 34631 197.17 836 818 171.5
A 15 174 27447 155.28 836 818 171.5
B 10 246 67798 412.59 843 823 162.3
B 0 214 60402 367.03 843 823 162.3
B 15 204 37794 227.76 843 823 162.3
C 4 254 113031 597.51 808 810 187.8
C 1 241 25813 133.13 808 810 187.8
C 13 61 6287 29.16 808 810 187.8
D 11 241 264534 1339.41 805 779 196.9
D 2 152 165050 834.21 805 779 196.9
D 4 95 136554 689.5 805 779 196.9

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