ASTROSAT CZTI

Data Quality Report

Orbit 47290

Creation date: 2024-06-27T23:33:48.986296
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/AS1A13_025T01_9000006312_47290cztM0_level2.fits modeM0/AS1A13_025T01_9000006312_47290cztM0_level2_quad_clean.evt
Size (bytes)48,945,6009,964,800
Size46.7 MB 9.5 MB
Events in quadrant A575,04932,109
Events in quadrant B437,86866,476
Events in quadrant C374,31675,176
Events in quadrant D356,68862,581

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108368778
B058683953
C051673210
D059244067

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05435
B04932
C05128
D05327

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51340.779727%
B87220.229358%
C97300.000000%
D91310.109529%

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 2498 790 0 0 0.00% 0.00%
B 2664 1276 1 1 0.04% 0.08%
C 2624 1364 1 1 0.04% 0.07%
D 2594 1311 0 0 0.00% 0.00%

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 252472 20155.41 49 48 12.5
A 15 235 119432 9532.51 49 48 12.5
A 9 191 9856 783.14 49 48 12.5
B 0 200 42673 2202.03 85 83 19.3
B 4 171 24683 1271.89 85 83 19.3
B 0 190 21819 1123.81 85 83 19.3
C 5 4 4690 190.18 93 93 24.2
C 14 254 4575 185.43 93 93 24.2
C 3 233 1187 45.26 93 93 24.2
D 14 34 9986 415.84 87 84 23.8
D 12 2 4390 180.83 87 84 23.8
D 2 234 4189 172.39 87 84 23.8

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