ASTROSAT CZTI

Data Quality Report

Orbit 02606

Creation date: 2024-06-27T14:20:12.138446
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/AS1T01_051T01_9000000390_02606cztM0_level2.evt modeM0/AS1T01_051T01_9000000390_02606cztM0_level2_quad_clean.evt
Size (bytes)421,128,000107,596,800
Size401.6 MB 102.6 MB
Events in quadrant A2,823,461689,021
Events in quadrant B3,155,900710,438
Events in quadrant C2,894,549719,208
Events in quadrant D3,432,709681,763

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133470
B0141110
C0134550
D0152780

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6571280.426115%
B6571620.943540%
C6571190.289149%
D65711061.613149%

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 7771 6572 0 0 0.00% 0.00%
B 7771 6572 16 16 0.21% 0.24%
C 7771 6572 5 5 0.06% 0.08%
D 7771 6572 42 42 0.54% 0.64%

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 3 1 13813 88.71 727 710 147.7
A 12 194 7949 49.01 727 710 147.7
A 0 226 7703 47.34 727 710 147.7
B 10 244 235358 1679.4 743 723 139.7
B 7 205 25617 178.18 743 723 139.7
B 0 189 11298 75.69 743 723 139.7
C 10 82 29560 174.94 716 719 164.9
C 9 70 24247 142.71 716 719 164.9
C 10 34 22363 131.29 716 719 164.9
D 2 216 433206 2619.89 697 680 165.1
D 2 136 140683 848.02 697 680 165.1
D 2 184 88506 531.98 697 680 165.1

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