ASTROSAT CZTI

Data Quality Report

Orbit 09683

Creation date: 2024-06-27T15:49:21.286435
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_198T01_9000001376_09683cztM0_level2.evt modeM0/AS1A02_198T01_9000001376_09683cztM0_level2_quad_clean.evt
Size (bytes)430,836,48070,237,440
Size410.9 MB 67.0 MB
Events in quadrant A3,083,995427,054
Events in quadrant B3,199,638428,301
Events in quadrant C3,043,467431,209
Events in quadrant D3,307,957416,393

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0221
C0220
D0231

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01242
B01246
C01240
D01242

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012990293
B013335295
C013107297
D013894332

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6079701.151505%
B6076931.530612%
C6074701.152453%
D6070701.153213%

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 7524 6195 0 0 0.00% 0.00%
B 7524 6193 0 0 0.00% 0.00%
C 7524 6195 0 0 0.00% 0.00%
D 7524 6196 5 5 0.07% 0.08%

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 1 162 24985 153.68 787 771 157.6
A 15 174 11557 68.46 787 771 157.6
A 1 178 8567 49.48 787 771 157.6
B 0 214 46610 314.18 788 771 145.9
B 0 219 44862 302.2 788 771 145.9
B 12 111 15310 99.65 788 771 145.9
C 10 22 12056 64.29 774 778 175.4
C 9 68 11242 59.65 774 778 175.4
C 13 61 5797 28.61 774 778 175.4
D 1 52 144077 784.89 766 747 182.6
D 8 195 97298 528.72 766 747 182.6
D 7 46 91532 497.15 766 747 182.6

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