ASTROSAT CZTI

Data Quality Report

Orbit 09060

Creation date: 2024-06-27T15:40:44.301073
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_046T01_9000001260_09060cztM0_level2.evt modeM0/AS1A03_046T01_9000001260_09060cztM0_level2_quad_clean.evt
Size (bytes)396,722,88062,403,840
Size378.3 MB 59.5 MB
Events in quadrant A2,921,179494,265
Events in quadrant B1,001,01298,629
Events in quadrant C2,802,569495,680
Events in quadrant D4,960,032460,442

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01226
B01224
C01222
D01224

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012553514
B0125148328
C012425581
D0203251791

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5764510.884802%
B204410.048924%
C5721490.856494%
D55944678.348230%

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 7309 5975 0 0 0.00% 0.00%
B 2236 2204 0 0 0.00% 0.00%
C 7310 5958 2 2 0.03% 0.03%
D 7310 5886 341 341 4.66% 5.79%

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 8 5 77206 516.71 728 714 148.0
A 1 162 20059 130.68 728 714 148.0
A 15 239 7797 47.85 728 714 148.0
B 0 229 6797 134.62 255 249 48.6
B 12 111 4815 93.87 255 249 48.6
B 11 111 4032 77.77 255 249 48.6
C 14 234 12228 71.49 713 718 161.0
C 3 254 7197 40.24 713 718 161.0
C 13 61 5450 29.39 713 718 161.0
D 1 52 1372165 8078.16 671 655 169.8
D 2 14 539867 3175.94 671 655 169.8
D 13 104 415397 2442.82 671 655 169.8

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