ASTROSAT CZTI

Data Quality Report

Orbit 41208

Creation date: 2024-06-27T22:25:57.248340
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/AS1C07_001T12_9000005632_41208cztM0_level2.fits modeM0/AS1C07_001T12_9000005632_41208cztM0_level2_quad_clean.evt
Size (bytes)126,964,80027,705,600
Size121.1 MB 26.4 MB
Events in quadrant A976,754188,231
Events in quadrant B1,336,974182,751
Events in quadrant C986,709177,712
Events in quadrant D1,265,650165,906

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A039532
B052161
C039481
D049191

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A168640.237248%
B16861156.820878%
C1686603.558719%
D1686704.151839%

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 3210 1688 3 3 0.09% 0.18%
B 3210 1688 60 60 1.87% 3.55%
C 3210 1688 57 57 1.78% 3.38%
D 3210 1688 66 66 2.06% 3.91%

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 10 83 211914 5121.63 190 185 41.3
A 12 189 20555 492.74 190 185 41.3
A 13 6 4407 102.13 190 185 41.3
B 0 186 461519 12445.61 185 180 37.1
B 15 85 53792 1446.3 185 180 37.1
B 0 229 50156 1348.21 185 180 37.1
C 0 10 178496 3999.2 184 184 44.6
C 15 214 74327 1662.88 184 184 44.6
C 14 254 7629 166.97 184 184 44.6
D 12 16 357746 7549.71 184 178 47.4
D 13 249 76087 1602.75 184 178 47.4
D 2 120 41792 878.64 184 178 47.4

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