ASTROSAT CZTI

Data Quality Report

Orbit 04270

Creation date: 2024-06-27T14:39:37.474606
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_04270cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04270cztM0_level2_quad_clean.evt
Size (bytes)520,695,36055,955,520
Size496.6 MB 53.4 MB
Events in quadrant A3,072,275331,021
Events in quadrant B4,412,966329,863
Events in quadrant C2,811,602322,238
Events in quadrant D5,062,259288,232

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126622
B0171021
C0124101
D0191141

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60451141.885856%
B60451742.878412%
C6045611.009098%
D60455699.412738%

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 7315 6045 1 1 0.01% 0.02%
B 7315 6045 51 51 0.70% 0.84%
C 7315 6046 0 0 0.00% 0.00%
D 7315 6045 392 392 5.36% 6.48%

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 8 15 133838 863.99 758 742 154.0
A 0 50 15521 95.94 758 742 154.0
A 12 194 8008 47.17 758 742 154.0
B 3 0 923853 6451.49 753 739 143.1
B 5 184 132551 921.21 753 739 143.1
B 8 3 103595 718.84 753 739 143.1
C 13 61 5911 31.17 718 721 166.5
C 9 144 5785 30.41 718 721 166.5
C 10 65 1994 7.65 718 721 166.5
D 1 52 1083587 6319.0 702 681 171.4
D 11 132 785543 4579.85 702 681 171.4
D 2 232 310644 1808.7 702 681 171.4

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