ASTROSAT CZTI

Data Quality Report

Orbit 04360

Creation date: 2024-06-27T14:40:54.207039
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_167T01_9000000542_04360cztM0_level2.evt modeM0/AS1G05_167T01_9000000542_04360cztM0_level2_quad_clean.evt
Size (bytes)393,888,96070,234,560
Size375.6 MB 67.0 MB
Events in quadrant A2,705,941450,192
Events in quadrant B2,578,475445,972
Events in quadrant C3,602,408425,625
Events in quadrant D2,672,105424,271

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116482
B0113061
C0144331
D0118031

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5431951.749217%
B5431641.178420%
C54313756.904806%
D5431901.657153%

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 5891 5431 23 23 0.39% 0.42%
B 5891 5432 2 2 0.03% 0.04%
C 5891 5431 288 288 4.89% 5.30%
D 5891 5431 25 25 0.42% 0.46%

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 15 234 127544 968.26 642 629 131.1
A 13 251 74962 567.1 642 629 131.1
A 13 14 12738 92.38 642 629 131.1
B 14 167 25203 195.72 651 637 125.5
B 4 48 14909 113.71 651 637 125.5
B 0 183 14868 113.38 651 637 125.5
C 9 247 1201247 8391.79 612 618 143.1
C 13 61 5062 31.06 612 618 143.1
C 9 16 4688 28.45 612 618 143.1
D 2 63 116919 774.68 622 605 150.1
D 2 37 51164 336.74 622 605 150.1
D 2 136 33078 216.28 622 605 150.1

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