ASTROSAT CZTI

Data Quality Report

Orbit 07290

Creation date: 2024-06-27T15:18:09.776901
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_154T04_9000000998_07290cztM0_level2.evt modeM0/AS1G06_154T04_9000000998_07290cztM0_level2_quad_clean.evt
Size (bytes)659,989,44077,676,480
Size629.4 MB 74.1 MB
Events in quadrant A4,018,133486,072
Events in quadrant B3,349,739494,241
Events in quadrant C3,257,614489,154
Events in quadrant D8,902,995409,664

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167473
B0145142
C0142602
D0310252

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67826729.908582%
B6782701.032144%
C6782640.943674%
D6782218632.232380%

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 8702 6782 158 158 1.82% 2.33%
B 8702 6782 3 3 0.03% 0.04%
C 8702 6782 3 3 0.03% 0.04%
D 8702 6783 2131 2131 24.49% 31.42%

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 15 239 984427 6242.3 771 755 157.6
A 14 111 29150 180.19 771 755 157.6
A 8 15 17101 103.73 771 755 157.6
B 0 214 47371 291.89 832 813 159.5
B 4 81 37046 227.16 832 813 159.5
B 0 213 29380 179.1 832 813 159.5
C 9 68 86116 452.43 808 814 188.5
C 13 61 6188 28.5 808 814 188.5
C 10 22 5377 24.2 808 814 188.5
D 12 221 5827289 32616.78 716 694 178.6
D 14 34 221314 1235.01 716 694 178.6
D 12 233 45873 252.91 716 694 178.6

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