ASTROSAT CZTI

Data Quality Report

Orbit 09135

Creation date: 2024-06-27T15:41:43.693194
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/AS1G07_046T01_9000001274_09135cztM0_level2.evt modeM0/AS1G07_046T01_9000001274_09135cztM0_level2_quad_clean.evt
Size (bytes)421,309,44067,743,360
Size401.8 MB 64.6 MB
Events in quadrant A3,547,682407,437
Events in quadrant B3,027,640415,506
Events in quadrant C2,809,768403,419
Events in quadrant D2,956,921396,189

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142512
B0127111
C0125421
D0129081

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61411081.758671%
B6141881.432991%
C6141420.683928%
D6141540.879336%

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 7121 6141 34 34 0.48% 0.55%
B 7121 6141 0 0 0.00% 0.00%
C 7121 6142 1 1 0.01% 0.02%
D 7121 6141 7 7 0.10% 0.11%

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 5 387363 2528.7 750 736 152.9
A 15 223 101227 657.25 750 736 152.9
A 1 162 71158 460.59 750 736 152.9
B 0 214 115081 789.12 749 731 144.9
B 12 111 16334 107.68 749 731 144.9
B 11 111 13223 86.21 749 731 144.9
C 14 234 7521 40.74 717 721 166.9
C 13 61 5468 28.44 717 721 166.9
C 14 67 4243 21.1 717 721 166.9
D 1 52 81043 449.92 723 703 178.6
D 2 14 43264 238.35 723 703 178.6
D 8 195 42087 231.76 723 703 178.6

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