ASTROSAT CZTI

Data Quality Report

Orbit 04215

Creation date: 2024-06-27T14:38:54.794842
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/AS1G05_240T01_9000000536_04215cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04215cztM0_level2_quad_clean.evt
Size (bytes)649,252,80066,911,040
Size619.2 MB 63.8 MB
Events in quadrant A5,950,637363,011
Events in quadrant B3,579,563399,911
Events in quadrant C3,317,346390,622
Events in quadrant D6,331,652374,836

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0225793
B0152412
C0148222
D0239788

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A714279211.089331%
B71421652.310277%
C71421011.414170%
D714183911.749055%

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 8627 7144 508 508 5.89% 7.11%
B 8627 7145 3 3 0.03% 0.04%
C 8627 7145 0 0 0.00% 0.00%
D 8627 7145 583 583 6.76% 8.16%

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 12 247 1613088 9652.88 809 790 167.0
A 15 234 553676 3310.15 809 790 167.0
A 0 50 474909 2838.56 809 790 167.0
B 15 204 147597 878.06 857 837 167.1
B 14 167 56777 334.69 857 837 167.1
B 0 183 25143 145.42 857 837 167.1
C 9 144 96939 496.37 821 824 193.6
C 10 65 10957 52.33 821 824 193.6
C 13 61 6676 30.22 821 824 193.6
D 2 232 2151600 11102.14 794 771 193.7
D 11 132 507125 2613.7 794 771 193.7
D 9 85 284874 1466.48 794 771 193.7

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