ASTROSAT CZTI

Data Quality Report

Orbit 34165

Creation date: 2024-06-27T20:57:19.572255
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/AS1A11_047T03_9000004880_34165cztM0_level2.evt modeM0/AS1A11_047T03_9000004880_34165cztM0_level2_quad_clean.evt
Size (bytes)684,446,40063,535,680
Size652.7 MB 60.6 MB
Events in quadrant A2,533,091409,878
Events in quadrant B9,530,545348,324
Events in quadrant C4,162,836395,871
Events in quadrant D4,130,779384,462

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0350

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110503
B0320852
C0158762
D0161072

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A549170.127481%
B5491276750.391550%
C54913446.264797%
D5491510.928793%

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 7164 5492 0 0 0.00% 0.00%
B 7164 5492 2483 2483 34.66% 45.21%
C 7164 5492 301 301 4.20% 5.48%
D 7164 5492 34 34 0.47% 0.62%

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 10 83 21617 159.97 648 633 131.2
A 13 6 8872 62.81 648 633 131.2
A 13 254 8864 62.75 648 633 131.2
B 5 31 4733962 45995.77 530 515 102.9
B 5 15 1942413 18869.78 530 515 102.9
B 5 172 414087 4018.75 530 515 102.9
C 0 10 1169582 8137.24 612 616 143.7
C 0 239 345170 2398.46 612 616 143.7
C 15 214 234275 1626.51 612 616 143.7
D 8 195 1335525 8619.15 626 609 154.9
D 12 218 156211 1004.67 626 609 154.9
D 2 250 46279 294.88 626 609 154.9

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