ASTROSAT CZTI

Data Quality Report

Orbit 10011

Creation date: 2024-06-27T15:53:42.915539
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/AS1G07_022T02_9000001434_10011cztM0_level2.evt modeM0/AS1G07_022T02_9000001434_10011cztM0_level2_quad_clean.evt
Size (bytes)466,698,24088,211,520
Size445.1 MB 84.1 MB
Events in quadrant A2,983,530562,076
Events in quadrant B2,833,255575,441
Events in quadrant C2,648,204588,175
Events in quadrant D5,268,177533,422

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013005239
B012447155
C012282174
D020249540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01202
B01200
C01202
D01202

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5896841.424695%
B5926540.911239%
C5918370.625211%
D58694918.365991%

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 6989 5992 23 23 0.33% 0.38%
B 6989 5998 1 1 0.01% 0.02%
C 6989 5992 0 0 0.00% 0.00%
D 6989 5976 531 531 7.60% 8.89%

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 214176 1504.08 691 677 141.9
A 15 174 85150 595.1 691 677 141.9
A 15 239 21343 145.59 691 677 141.9
B 0 214 35256 257.84 696 678 134.1
B 4 81 30202 220.15 696 678 134.1
B 0 219 25796 187.3 696 678 134.1
C 13 61 5115 28.26 677 680 157.0
C 14 67 5082 28.05 677 680 157.0
C 8 222 2693 12.83 677 680 157.0
D 2 16 1203414 7455.98 657 638 161.3
D 8 195 590124 3654.21 657 638 161.3
D 1 52 399419 2472.03 657 638 161.3

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