ASTROSAT CZTI

Data Quality Report

Orbit 45751

Creation date: 2024-06-27T23:15:45.717921
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/AS1T05_183T01_9000006124_45751cztM0_level2.fits modeM0/AS1T05_183T01_9000006124_45751cztM0_level2_quad_clean.evt
Size (bytes)595,091,520110,776,320
Size567.5 MB 105.6 MB
Events in quadrant A6,232,628757,059
Events in quadrant B6,512,645695,734
Events in quadrant C3,436,620771,434
Events in quadrant D5,331,954666,798

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0225771
B0239911
C0147782
D0202861

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66402994.503012%
B6640102915.496988%
C66391522.289501%
D66395668.525380%

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 7690 6641 6 6 0.08% 0.09%
B 7690 6641 554 554 7.20% 8.34%
C 7689 6640 58 58 0.75% 0.87%
D 7689 6640 336 336 4.37% 5.06%

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 10 83 3028588 18485.89 799 783 163.8
A 13 248 26404 156.43 799 783 163.8
A 12 189 22480 132.47 799 783 163.8
B 3 112 2743583 18586.47 749 727 147.6
B 5 172 449464 3040.78 749 727 147.6
B 5 32 69321 464.81 749 727 147.6
C 14 254 266316 1441.92 783 788 184.1
C 12 2 66128 354.82 783 788 184.1
C 14 96 36150 192.03 783 788 184.1
D 1 52 1415010 7311.27 766 744 193.4
D 13 249 580332 2996.27 766 744 193.4
D 5 171 98953 507.71 766 744 193.4

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