ASTROSAT CZTI

Data Quality Report

Orbit 21460

Creation date: 2024-06-27T18:28:02.848656
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/AS1A05_117T01_9000003166_21460cztM0_level2.evt modeM0/AS1A05_117T01_9000003166_21460cztM0_level2_quad_clean.evt
Size (bytes)463,988,16071,879,040
Size442.5 MB 68.5 MB
Events in quadrant A2,677,407454,351
Events in quadrant B2,722,890462,591
Events in quadrant C2,653,218446,381
Events in quadrant D5,612,067414,998

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116262
B0117442
C0115272
D0206602

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5690150.263620%
B5690400.702988%
C5690380.667838%
D56905169.068541%

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 6610 5691 0 0 0.00% 0.00%
B 6610 5690 2 2 0.03% 0.04%
C 6610 5690 0 0 0.00% 0.00%
D 6610 5690 516 516 7.81% 9.07%

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 11 47 61831 447.18 679 664 136.8
A 13 254 8488 57.2 679 664 136.8
A 3 137 5951 38.65 679 664 136.8
B 0 197 49027 370.81 676 656 130.4
B 12 111 16212 119.25 676 656 130.4
B 11 111 14339 104.89 676 656 130.4
C 14 238 103157 663.76 654 658 154.4
C 13 61 4465 24.65 654 658 154.4
C 3 233 1821 7.53 654 658 154.4
D 12 235 2910875 18596.62 644 626 156.5
D 14 35 65000 411.35 644 626 156.5
D 1 52 52390 330.77 644 626 156.5

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