ASTROSAT CZTI

Data Quality Report

Orbit 00430

Creation date: 2024-06-27T13:59:33.786516
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/AS1P01_044T01_9000000072_00430cztM0_level2.evt modeM0/AS1P01_044T01_9000000072_00430cztM0_level2_quad_clean.evt
Size (bytes)862,344,00038,039,040
Size822.4 MB 36.3 MB
Events in quadrant A7,273,016190,841
Events in quadrant B6,351,758203,413
Events in quadrant C5,898,220205,563
Events in quadrant D6,257,468196,369

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0251783
B0224982
C0211282
D0221992

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A50591923.795216%
B5059140.276735%
C5059160.316268%
D5059661.304606%

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 7214 5060 586 586 8.12% 11.58%
B 7214 5060 146 146 2.02% 2.89%
C 7214 5060 87 87 1.21% 1.72%
D 7214 5060 190 190 2.63% 3.75%

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 11 191 965459 2719.39 1586 1569 354.5
A 0 238 80657 223.13 1586 1569 354.5
A 5 244 65896 181.48 1586 1569 354.5
B 5 31 151785 401.05 1592 1601 374.5
B 0 197 29770 75.22 1592 1601 374.5
B 15 238 22850 56.74 1592 1601 374.5
C 9 206 103968 255.03 1448 1499 401.8
C 1 1 82867 202.51 1448 1499 401.8
C 14 238 12608 27.65 1448 1499 401.8
D 1 4 176231 421.5 1437 1470 414.6
D 11 177 161287 385.46 1437 1470 414.6
D 1 5 145852 348.23 1437 1470 414.6

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