ASTROSAT CZTI

Data Quality Report

Orbit 32945

Creation date: 2024-06-27T20:43:44.408324
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_32945cztM0_level2.evt modeM0/AS1C07_005T01_9000004748_32945cztM0_level2_quad_clean.evt
Size (bytes)436,325,760102,574,080
Size416.1 MB 97.8 MB
Events in quadrant A2,338,614710,356
Events in quadrant B3,149,168710,503
Events in quadrant C2,554,608702,486
Events in quadrant D4,837,464637,629

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A099733
B0123812
C0106732
D0179802

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A492620.040601%
B49262535.136013%
C4926721.461632%
D49262475.014210%

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 6989 4927 0 0 0.00% 0.00%
B 6989 4926 176 176 2.52% 3.57%
C 6989 4927 58 58 0.83% 1.18%
D 6989 4927 229 229 3.28% 4.65%

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 13134 105.92 597 588 118.4
A 13 254 9062 71.54 597 588 118.4
A 13 6 7226 56.04 597 588 118.4
B 5 172 553321 5041.25 592 578 109.6
B 0 199 72711 657.88 592 578 109.6
B 0 189 40810 366.93 592 578 109.6
C 0 10 218199 1634.96 583 589 133.1
C 14 67 19328 140.79 583 589 133.1
C 1 241 13983 100.63 583 589 133.1
D 8 195 1329722 9217.07 563 550 144.2
D 2 250 351758 2435.43 563 550 144.2
D 12 218 329656 2282.17 563 550 144.2

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