ASTROSAT CZTI

Data Quality Report

Orbit 20248

Creation date: 2024-06-27T18:12:58.837591
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/AS1T03_123T01_9000003000_20248cztM0_level2.evt modeM0/AS1T03_123T01_9000003000_20248cztM0_level2_quad_clean.evt
Size (bytes)572,702,40095,016,960
Size546.2 MB 90.6 MB
Events in quadrant A3,284,108632,584
Events in quadrant B3,224,705645,967
Events in quadrant C3,177,868594,414
Events in quadrant D7,230,898564,899

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135612
B0133652
C0133262
D0257462

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6299550.873154%
B6299711.127163%
C6298971.540171%
D6298107016.989520%

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 0 0 0.00% 0.00%
B 7514 6300 0 0 0.00% 0.00%
C 7513 6299 0 0 0.00% 0.00%
D 7513 6299 1433 1433 19.07% 22.75%

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 10 253 97834 590.32 828 814 164.4
A 0 226 7252 39.17 828 814 164.4
A 3 137 6496 34.57 828 814 164.4
B 12 111 19046 117.97 821 804 154.6
B 11 111 16891 104.04 821 804 154.6
B 14 111 15778 96.84 821 804 154.6
C 14 238 123265 678.07 778 787 180.6
C 1 16 9306 47.16 778 787 180.6
C 13 61 5496 26.07 778 787 180.6
D 1 52 4151095 22165.76 771 749 187.2
D 11 176 130093 690.79 771 749 187.2
D 2 184 29597 154.07 771 749 187.2

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