ASTROSAT CZTI

Data Quality Report

Orbit 05327

Creation date: 2024-06-27T14:53:56.163110
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_9000000674_05327cztM0_level2.evt modeM0/AS1G05_240T01_9000000674_05327cztM0_level2_quad_clean.evt
Size (bytes)445,334,40087,419,520
Size424.7 MB 83.4 MB
Events in quadrant A3,084,019550,082
Events in quadrant B3,216,476569,898
Events in quadrant C3,108,182549,719
Events in quadrant D3,625,599513,333

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137823
B0139262
C0136872
D0153532

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6656290.435697%
B6656430.646034%
C6656180.270433%
D6656500.751202%

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 7951 6657 0 0 0.00% 0.00%
B 7951 6657 2 2 0.03% 0.03%
C 7951 6657 0 0 0.00% 0.00%
D 7951 6657 70 70 0.88% 1.05%

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 13 251 36695 226.62 786 768 158.5
A 0 50 12400 73.37 786 768 158.5
A 12 194 7618 43.21 786 768 158.5
B 15 204 29032 186.8 805 786 151.2
B 4 80 17894 113.14 805 786 151.2
B 0 219 16765 105.68 805 786 151.2
C 14 67 23102 123.58 778 784 180.6
C 1 16 19592 104.14 778 784 180.6
C 8 128 17146 90.6 778 784 180.6
D 7 203 367417 1954.03 763 740 187.7
D 2 234 147955 784.51 763 740 187.7
D 2 136 79617 420.34 763 740 187.7

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