ASTROSAT CZTI

Data Quality Report

Orbit 19046

Creation date: 2024-06-27T17:58:27.233826
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/AS1A05_046T01_9000002834_19046cztM0_level2.evt modeM0/AS1A05_046T01_9000002834_19046cztM0_level2_quad_clean.evt
Size (bytes)467,199,360103,740,480
Size445.6 MB 98.9 MB
Events in quadrant A3,125,353676,526
Events in quadrant B3,376,508701,363
Events in quadrant C3,436,119675,222
Events in quadrant D3,783,494649,281

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133422
B0141422
C0142322
D0156263

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6299200.317511%
B6299951.508176%
C6299510.809652%
D6298821.302001%

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 7514 6300 3 3 0.04% 0.05%
B 7514 6300 30 30 0.40% 0.48%
C 7514 6300 0 0 0.00% 0.00%
D 7513 6299 59 59 0.79% 0.94%

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 13 210 26984 161.53 801 785 162.2
A 14 235 11083 63.49 801 785 162.2
A 13 254 8146 45.38 801 785 162.2
B 7 220 82973 535.23 808 788 153.6
B 3 112 65574 421.92 808 788 153.6
B 0 197 27979 177.08 808 788 153.6
C 3 233 254163 1382.41 783 791 183.3
C 14 238 122500 664.05 783 791 183.3
C 9 15 6544 31.39 783 791 183.3
D 7 238 816168 4283.66 780 761 190.4
D 2 234 25814 131.61 780 761 190.4
D 7 96 10813 52.81 780 761 190.4

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