ASTROSAT CZTI

Data Quality Report

Orbit 13051

Creation date: 2024-06-27T16:35:48.011945
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/AS1G08_045T01_9000001920_13051cztM0_level2.evt modeM0/AS1G08_045T01_9000001920_13051cztM0_level2_quad_clean.evt
Size (bytes)512,461,44091,370,880
Size488.7 MB 87.1 MB
Events in quadrant A3,425,374582,310
Events in quadrant B4,384,520585,074
Events in quadrant C3,049,973587,985
Events in quadrant D4,212,088551,139

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146693
B0176122
C0134372
D0169682

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6612721.088929%
B66122123.206292%
C6612170.257108%
D66121081.633394%

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 7668 6614 19 19 0.25% 0.29%
B 7668 6614 88 88 1.15% 1.33%
C 7668 6614 0 0 0.00% 0.00%
D 7668 6614 72 72 0.94% 1.09%

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 15 213228 1308.17 795 777 162.4
A 12 189 91404 558.04 795 777 162.4
A 9 143 17626 103.75 795 777 162.4
B 0 85 692318 4570.1 798 779 151.3
B 0 219 163070 1072.51 798 779 151.3
B 3 64 153764 1011.01 798 779 151.3
C 13 61 5740 27.38 779 785 181.0
C 0 207 5560 26.38 779 785 181.0
C 8 222 2526 9.62 779 785 181.0
D 1 52 914826 4959.3 767 750 184.3
D 8 195 175471 947.94 767 750 184.3
D 14 34 154763 835.59 767 750 184.3

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