ASTROSAT CZTI

Data Quality Report

Orbit 10739

Creation date: 2024-06-27T16:03:08.122268
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/AS1A03_078T01_9000001546_10739cztM0_level2.evt modeM0/AS1A03_078T01_9000001546_10739cztM0_level2_quad_clean.evt
Size (bytes)584,424,00083,525,760
Size557.4 MB 79.7 MB
Events in quadrant A3,559,502531,047
Events in quadrant B4,576,452533,957
Events in quadrant C3,144,483542,517
Events in quadrant D6,005,115494,991

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145663
B0176972
C0132812
D0221332

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61122514.106675%
B61124857.935209%
C6112540.883508%
D611280713.203534%

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 7437 6113 110 110 1.48% 1.80%
B 7437 6113 259 259 3.48% 4.24%
C 7437 6113 0 0 0.00% 0.00%
D 7437 6113 648 648 8.71% 10.60%

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 15 239 355825 2185.73 804 790 162.4
A 14 254 60656 368.56 804 790 162.4
A 13 251 22254 132.14 804 790 162.4
B 4 239 1355520 9044.59 794 777 149.8
B 15 204 44333 290.79 794 777 149.8
B 0 214 30328 197.29 794 777 149.8
C 13 61 5976 27.98 805 811 184.6
C 14 234 5889 27.51 805 811 184.6
C 3 202 2051 6.72 805 811 184.6
D 1 52 1401251 7711.04 760 742 181.6
D 2 16 1225020 6740.73 760 742 181.6
D 10 157 172170 943.86 760 742 181.6

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