ASTROSAT CZTI

Data Quality Report

Orbit 07238

Creation date: 2024-06-27T15:17:12.260871
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/AS1G05_246T03_9000000990_07238cztM0_level2.evt modeM0/AS1G05_246T03_9000000990_07238cztM0_level2_quad_clean.evt
Size (bytes)481,985,28092,600,640
Size459.7 MB 88.3 MB
Events in quadrant A3,110,573591,222
Events in quadrant B3,687,516604,581
Events in quadrant C4,113,742589,768
Events in quadrant D3,239,855561,208

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136483
B0154112
C0167852
D0145802

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6565140.213252%
B65651021.553694%
C6565380.578827%
D6565911.386139%

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 7850 6566 1 1 0.01% 0.02%
B 7850 6566 85 85 1.08% 1.29%
C 7850 6566 16 16 0.20% 0.24%
D 7850 6566 62 62 0.79% 0.94%

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 8 15 110164 701.1 765 749 156.1
A 14 238 23112 143.3 765 749 156.1
A 3 1 21767 134.68 765 749 156.1
B 10 16 514828 3498.19 773 754 147.0
B 4 81 70348 473.58 773 754 147.0
B 0 214 70018 471.33 773 754 147.0
C 9 68 1206032 7034.77 742 747 171.3
C 12 4 6826 35.48 742 747 171.3
C 13 61 5832 29.68 742 747 171.3
D 2 14 159592 890.14 731 707 178.5
D 12 233 121294 675.57 731 707 178.5
D 2 33 82152 456.29 731 707 178.5

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