ASTROSAT CZTI

Data Quality Report

Orbit 07195

Creation date: 2024-06-27T15:16:39.324227
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/AS1A02_073T02_9000000982_07195cztM0_level2.evt modeM0/AS1A02_073T02_9000000982_07195cztM0_level2_quad_clean.evt
Size (bytes)455,250,24088,341,120
Size434.2 MB 84.2 MB
Events in quadrant A3,118,203556,182
Events in quadrant B3,371,828566,911
Events in quadrant C3,103,052558,717
Events in quadrant D3,746,514534,174

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136173
B0142272
C0138242
D0155362

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65931031.562263%
B65931221.850447%
C6593450.682542%
D65931121.698771%

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 8953 6594 0 0 0.00% 0.00%
B 8953 6593 13 13 0.15% 0.20%
C 8953 6595 0 0 0.00% 0.00%
D 8953 6594 40 40 0.45% 0.61%

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 14 111 12722 72.4 801 785 164.9
A 13 248 11099 62.56 801 785 164.9
A 13 14 7665 41.73 801 785 164.9
B 0 214 131740 851.42 801 784 153.8
B 4 81 64492 414.2 801 784 153.8
B 0 219 34142 216.88 801 784 153.8
C 13 250 81071 447.31 772 777 179.5
C 13 61 5869 28.37 772 777 179.5
C 9 68 5497 26.29 772 777 179.5
D 2 216 376605 1963.39 774 751 191.4
D 14 34 136569 709.49 774 751 191.4
D 8 195 121286 629.65 774 751 191.4

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