ASTROSAT CZTI

Data Quality Report

Orbit 05489

Creation date: 2024-06-27T14:55:56.386312
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/AS1G06_139T01_9000000700_05489cztM0_level2.evt modeM0/AS1G06_139T01_9000000700_05489cztM0_level2_quad_clean.evt
Size (bytes)119,332,80027,780,480
Size113.8 MB 26.5 MB
Events in quadrant A791,800179,851
Events in quadrant B989,329177,947
Events in quadrant C847,585181,626
Events in quadrant D869,091178,729

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0356911
B040417
C037447
D037485

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1665472.822823%
B1666734.381753%
C1666342.040816%
D1667331.979604%

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 2494 1671 0 0 0.00% 0.00%
B 2494 1671 2 2 0.08% 0.12%
C 2494 1671 12 12 0.48% 0.72%
D 2494 1671 5 5 0.20% 0.30%

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 6 2639 55.29 204 199 44.1
A 12 194 2095 42.96 204 199 44.1
A 0 226 2056 42.08 204 199 44.1
B 15 204 68020 1599.94 205 200 42.4
B 11 51 48569 1141.07 205 200 42.4
B 7 252 41694 978.88 205 200 42.4
C 9 247 68896 1453.7 195 196 47.3
C 1 16 14913 311.41 195 196 47.3
C 13 61 1572 29.12 195 196 47.3
D 2 152 34314 671.27 199 192 50.8
D 8 195 21786 424.81 199 192 50.8
D 2 136 15623 303.57 199 192 50.8

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