ASTROSAT CZTI

Data Quality Report

Orbit 32944

Creation date: 2024-06-27T20:43:43.590290
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_005T01_9000004748_32944cztM0_level2.evt modeM0/AS1C07_005T01_9000004748_32944cztM0_level2_quad_clean.evt
Size (bytes)457,983,360102,565,440
Size436.8 MB 97.8 MB
Events in quadrant A2,389,431708,319
Events in quadrant B3,492,371707,799
Events in quadrant C2,618,429698,423
Events in quadrant D5,026,192636,353

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102843
B0135832
C0110742
D0185892

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A506760.118413%
B50673005.920663%
C5067761.499901%
D50672945.802250%

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 7039 5068 0 0 0.00% 0.00%
B 7039 5068 194 194 2.76% 3.83%
C 7039 5068 62 62 0.88% 1.22%
D 7039 5068 269 269 3.82% 5.31%

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 0 159 15414 122.5 607 596 121.0
A 13 254 9702 75.28 607 596 121.0
A 13 6 8185 62.74 607 596 121.0
B 5 172 613958 5427.17 601 586 113.0
B 5 200 178887 1577.62 601 586 113.0
B 0 219 142897 1259.18 601 586 113.0
C 0 10 284623 2132.3 585 590 133.2
C 1 241 20202 147.23 585 590 133.2
C 14 67 14964 107.91 585 590 133.2
D 8 195 1445960 10011.61 564 553 144.4
D 2 250 479085 3314.55 564 553 144.4
D 7 80 273378 1889.72 564 553 144.4

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