ASTROSAT CZTI

Data Quality Report

Orbit 25415

Creation date: 2024-06-27T19:17:24.273168
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/AS1A09_047T01_9000003714_25415cztM0_level2.evt modeM0/AS1A09_047T01_9000003714_25415cztM0_level2_quad_clean.evt
Size (bytes)529,142,40085,357,440
Size504.6 MB 81.4 MB
Events in quadrant A3,468,920542,107
Events in quadrant B3,513,497548,274
Events in quadrant C3,512,816525,905
Events in quadrant D5,082,482508,313

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143030
B0144350
C0145900
D0197200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6599600.909229%
B6599791.197151%
C65991301.969995%
D65991882.848917%

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 7754 6599 2 2 0.03% 0.03%
B 7754 6599 1 1 0.01% 0.02%
C 7754 6599 0 0 0.00% 0.00%
D 7754 6599 133 133 1.72% 2.02%

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 6 16 57896 323.76 885 867 176.1
A 13 254 10712 55.89 885 867 176.1
A 3 137 7847 39.63 885 867 176.1
B 0 229 42412 257.09 874 852 161.7
B 3 112 38770 234.56 874 852 161.7
B 12 111 19488 115.28 874 852 161.7
C 14 238 138898 709.37 848 855 194.6
C 7 247 63755 323.23 848 855 194.6
C 2 16 7412 33.69 848 855 194.6
D 8 195 795385 3877.01 856 833 204.9
D 7 238 588392 2866.99 856 833 204.9
D 1 52 273543 1330.68 856 833 204.9

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