ASTROSAT CZTI

Data Quality Report

Orbit 16341

Creation date: 2024-06-27T17:21:11.335386
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_101T01_9000002412_16341cztM0_level2.evt modeM0/AS1A05_101T01_9000002412_16341cztM0_level2_quad_clean.evt
Size (bytes)509,397,12077,788,800
Size485.8 MB 74.2 MB
Events in quadrant A3,307,183477,675
Events in quadrant B4,358,778482,646
Events in quadrant C3,384,159487,830
Events in quadrant D3,953,507471,293

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134253
B0170282
C0137202
D0155262

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6249500.800128%
B62492433.888622%
C6249891.424228%
D62492884.608737%

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 7620 6251 3 3 0.04% 0.05%
B 7620 6251 113 113 1.48% 1.81%
C 7620 6251 0 0 0.00% 0.00%
D 7620 6251 229 229 3.01% 3.66%

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 15 174 76890 454.25 841 827 167.4
A 0 226 7423 39.39 841 827 167.4
A 12 194 6237 32.31 841 827 167.4
B 3 112 746686 4848.46 841 823 153.8
B 4 173 160707 1039.32 841 823 153.8
B 15 35 93671 603.56 841 823 153.8
C 14 238 131963 696.91 829 836 188.2
C 3 233 17549 88.83 829 836 188.2
C 13 61 5851 26.65 829 836 188.2
D 12 110 732211 3768.76 815 794 194.1
D 12 218 88821 453.57 815 794 194.1
D 1 52 28034 140.36 815 794 194.1

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