ASTROSAT CZTI

Data Quality Report

Orbit 07654

Creation date: 2024-06-27T15:22:17.867591
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/AS1G06_124T01_9000001054_07654cztM0_level2.evt modeM0/AS1G06_124T01_9000001054_07654cztM0_level2_quad_clean.evt
Size (bytes)427,184,64090,440,640
Size407.4 MB 86.3 MB
Events in quadrant A3,093,130573,551
Events in quadrant B3,152,498584,226
Events in quadrant C3,088,732580,889
Events in quadrant D3,166,649552,559

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132183
B0132902
C0132262
D0136752

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6417550.857098%
B6417490.763597%
C6417380.592177%
D6417580.903849%

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 7582 6418 2 2 0.03% 0.03%
B 7582 6418 1 1 0.01% 0.02%
C 7582 6418 0 0 0.00% 0.00%
D 7582 6418 15 15 0.20% 0.23%

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 13 248 13950 80.85 800 783 162.9
A 0 226 7469 41.05 800 783 162.9
A 12 194 7222 39.54 800 783 162.9
B 4 81 35058 225.65 799 778 151.9
B 12 111 16086 100.76 799 778 151.9
B 11 111 12794 79.09 799 778 151.9
C 9 68 11273 57.05 787 793 183.7
C 10 22 6672 32.0 787 793 183.7
C 13 61 5902 27.81 787 793 183.7
D 2 152 55241 288.86 783 761 188.6
D 2 14 29478 152.26 783 761 188.6
D 13 238 29179 150.67 783 761 188.6

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