ASTROSAT CZTI

Data Quality Report

Orbit 11162

Creation date: 2024-06-27T16:09:09.375831
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_058T02_9000001626_11162cztM0_level2.evt modeM0/AS1A04_058T02_9000001626_11162cztM0_level2_quad_clean.evt
Size (bytes)412,767,36074,943,360
Size393.6 MB 71.5 MB
Events in quadrant A3,245,650468,650
Events in quadrant B3,585,198470,005
Events in quadrant C2,345,922492,386
Events in quadrant D2,958,124461,883

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012111
B012010
C012212
D01188

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124
B0157
C0147
D0168

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147481400
B0154051092
C011835930
D0138811187

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A53751332.474419%
B53733446.402382%
C5374410.762933%
D53751192.213953%

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 5375 5375 43 43 0.80% 0.80%
B 5375 5375 174 174 3.24% 3.24%
C 5375 5375 0 0 0.00% 0.00%
D 5375 5375 49 49 0.91% 0.91%

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 418389 3341.88 604 588 125.0
A 8 5 417598 3335.55 604 588 125.0
A 14 238 43991 347.17 604 588 125.0
B 4 239 968390 8320.29 600 584 116.3
B 15 204 120414 1030.19 600 584 116.3
B 10 16 63271 538.92 600 584 116.3
C 13 61 4407 27.17 599 603 140.0
C 14 67 4032 24.49 599 603 140.0
C 9 204 3629 21.62 599 603 140.0
D 13 104 159359 1120.28 588 571 141.7
D 1 52 125004 877.9 588 571 141.7
D 10 157 98932 693.95 588 571 141.7

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