ASTROSAT CZTI

Data Quality Report

Orbit 09906

Creation date: 2024-06-27T15:52:20.652200
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/AS1A03_053T01_9000001410_09906cztM0_level2.evt modeM0/AS1A03_053T01_9000001410_09906cztM0_level2_quad_clean.evt
Size (bytes)305,879,04049,452,480
Size291.7 MB 47.2 MB
Events in quadrant A1,935,009311,709
Events in quadrant B2,083,315311,479
Events in quadrant C1,888,438318,612
Events in quadrant D3,073,320263,895

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A053
B054
C053
D053

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016684
B016979
C016787
D016981

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172198598
B0179209053
C0169978343
D02447912831

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4155872.093863%
B4151791.903156%
C4230501.182033%
D39362476.275407%

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 8623 4994 9 9 0.10% 0.18%
B 8493 5031 6 6 0.07% 0.12%
C 8660 5080 0 0 0.00% 0.00%
D 8643 4821 243 243 2.81% 5.04%

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 15 174 26064 252.22 486 475 101.5
A 15 239 24271 234.54 486 475 101.5
A 14 254 6906 63.39 486 475 101.5
B 4 81 95455 979.64 487 474 97.0
B 0 214 28967 293.88 487 474 97.0
B 6 51 17655 177.21 487 474 97.0
C 14 67 4503 35.37 482 486 113.6
C 13 61 3466 26.24 482 486 113.6
C 9 221 1588 9.7 482 486 113.6
D 2 16 746320 6870.59 441 430 108.6
D 8 195 357220 3286.49 441 430 108.6
D 1 52 86742 795.04 441 430 108.6

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