ASTROSAT CZTI

Data Quality Report

Orbit 11049

Creation date: 2024-06-27T16:07:33.342737
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/AS1C03_006T01_9000001608_11049cztM0_level2.evt modeM0/AS1C03_006T01_9000001608_11049cztM0_level2_quad_clean.evt
Size (bytes)440,228,16038,589,120
Size419.8 MB 36.8 MB
Events in quadrant A6,104,815188,963
Events in quadrant B2,680,055240,180
Events in quadrant C1,842,681243,333
Events in quadrant D2,448,580228,793

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0207363
B0103922
C079312
D096932

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0780
C0780
D0780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3762193151.329080%
B37622787.389686%
C3762330.877193%
D37621082.870813%

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 3997 3763 1360 1360 34.03% 36.14%
B 3997 3764 92 92 2.30% 2.44%
C 3997 3764 1 1 0.03% 0.03%
D 3997 3764 59 59 1.48% 1.57%

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 14 238 3717831 45528.15 387 378 81.7
A 15 174 889171 10885.17 387 378 81.7
A 14 254 6477 74.7 387 378 81.7
B 4 239 721468 7605.54 477 465 94.8
B 0 187 41689 434.85 477 465 94.8
B 0 214 22316 230.5 477 465 94.8
C 8 128 3971 31.54 470 470 111.0
C 13 61 3575 27.97 470 470 111.0
C 9 54 2442 17.76 470 470 111.0
D 8 195 204707 1783.59 467 453 114.5
D 14 34 116207 1010.79 467 453 114.5
D 13 104 99309 863.23 467 453 114.5

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