ASTROSAT CZTI

Data Quality Report

Orbit 11379

Creation date: 2024-06-27T16:12:05.413593
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/AS1A04_022T02_9000001662_11379cztM0_level2.evt modeM0/AS1A04_022T02_9000001662_11379cztM0_level2_quad_clean.evt
Size (bytes)568,823,04094,193,280
Size542.5 MB 89.8 MB
Events in quadrant A3,315,549599,523
Events in quadrant B4,915,342567,204
Events in quadrant C3,126,012645,115
Events in quadrant D5,405,028562,516

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145963
B0192482
C0140632
D0208022

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6853320.466949%
B68535788.434262%
C6853120.175106%
D68535347.792208%

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 7709 6855 11 11 0.14% 0.16%
B 7709 6855 323 323 4.19% 4.71%
C 7709 6855 0 0 0.00% 0.00%
D 7709 6854 425 425 5.51% 6.20%

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 8 5 209058 1283.11 798 779 162.3
A 15 174 16580 97.34 798 779 162.3
A 11 29 9244 52.15 798 779 162.3
B 4 239 1495359 10200.11 769 750 146.5
B 10 244 179466 1219.67 769 750 146.5
B 3 64 79051 534.37 769 750 146.5
C 12 4 8777 42.78 798 801 186.4
C 13 61 5769 26.65 798 801 186.4
C 10 5 4093 17.66 798 801 186.4
D 14 34 1451646 8137.15 749 730 178.3
D 10 253 283043 1583.29 749 730 178.3
D 1 52 282637 1581.01 749 730 178.3

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