ASTROSAT CZTI

Data Quality Report

Orbit 28065

Creation date: 2024-06-27T19:47:38.969982
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/AS1A10_057T02_9000004054_28065cztM0_level2.evt modeM0/AS1A10_057T02_9000004054_28065cztM0_level2_quad_clean.evt
Size (bytes)597,306,240105,203,520
Size569.6 MB 100.3 MB
Events in quadrant A3,477,447712,887
Events in quadrant B4,609,271704,934
Events in quadrant C3,332,275669,865
Events in quadrant D6,226,173640,640

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141720
B0176830
C0137400
D0228630

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6559600.914774%
B65594366.647355%
C6559931.417899%
D655967710.321695%

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 7764 6559 2 2 0.03% 0.03%
B 7764 6559 293 293 3.77% 4.47%
C 7764 6559 0 0 0.00% 0.00%
D 7764 6559 652 652 8.40% 9.94%

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 13 59160 336.73 878 865 173.1
A 4 2 25916 144.7 878 865 173.1
A 13 254 10311 54.56 878 865 173.1
B 10 245 1293312 8183.62 842 823 157.9
B 12 111 18859 114.2 842 823 157.9
B 11 111 16731 100.72 842 823 157.9
C 14 238 133734 708.13 815 821 187.7
C 3 233 21263 108.91 815 821 187.7
C 13 61 5732 26.16 815 821 187.7
D 8 195 2317810 12280.75 812 795 188.7
D 2 250 516362 2732.63 812 795 188.7
D 1 52 288045 1522.5 812 795 188.7

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