ASTROSAT CZTI

Data Quality Report

Orbit 34105

Creation date: 2024-06-27T20:56:35.916787
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/AS1A05_208T01_9000004870_34105cztM0_level2.evt modeM0/AS1A05_208T01_9000004870_34105cztM0_level2_quad_clean.evt
Size (bytes)600,122,88060,566,400
Size572.3 MB 57.8 MB
Events in quadrant A3,920,910376,984
Events in quadrant B4,883,413374,569
Events in quadrant C3,469,773376,401
Events in quadrant D5,562,425354,692

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147773
B0177392
C0133982
D0199382

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A500563712.727273%
B500580316.043956%
C50051633.256743%
D500564812.947053%

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 7128 5006 549 549 7.70% 10.97%
B 7128 5006 602 602 8.45% 12.03%
C 7128 5006 129 129 1.81% 2.58%
D 7128 5006 662 662 9.29% 13.22%

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 17 1617149 13751.24 590 579 117.6
A 10 83 14510 118.5 590 579 117.6
A 13 6 12186 98.73 590 579 117.6
B 5 172 2486519 22376.0 580 567 111.1
B 4 81 28854 254.61 580 567 111.1
B 0 219 19807 173.18 580 567 111.1
C 0 10 666339 4783.89 602 608 139.2
C 15 214 217188 1556.33 602 608 139.2
C 14 254 160391 1148.19 602 608 139.2
D 1 52 1433723 9952.92 587 572 144.0
D 8 195 1141178 7921.26 587 572 144.0
D 2 250 242410 1679.51 587 572 144.0

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