ASTROSAT CZTI

Data Quality Report

Orbit 44602

Creation date: 2024-06-27T23:04:23.628437
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/AS1A13_009T03_9000006006_44602cztM0_level2.fits modeM0/AS1A13_009T03_9000006006_44602cztM0_level2_quad_clean.evt
Size (bytes)459,466,560112,777,920
Size438.2 MB 107.6 MB
Events in quadrant A5,647,585746,592
Events in quadrant B3,206,696784,758
Events in quadrant C3,576,373735,379
Events in quadrant D4,052,468677,478

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0224982
B0141112
C0153182
D0167632

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67572643.907059%
B6757460.680775%
C67571181.746337%
D67571432.116324%

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 7922 6758 194 194 2.45% 2.87%
B 7922 6757 30 30 0.38% 0.44%
C 7922 6758 105 105 1.33% 1.55%
D 7922 6757 144 144 1.82% 2.13%

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 1870059 12110.92 752 737 154.4
A 15 223 486551 3147.48 752 737 154.4
A 9 191 258753 1671.63 752 737 154.4
B 5 172 67284 440.73 767 743 151.0
B 4 216 47366 308.8 767 743 151.0
B 14 167 35933 233.08 767 743 151.0
C 12 2 488920 2778.19 746 750 175.7
C 14 254 69475 391.12 746 750 175.7
C 1 90 64974 365.5 746 750 175.7
D 1 52 589623 3161.62 743 722 186.3
D 13 249 452336 2424.57 743 722 186.3
D 2 249 67838 360.32 743 722 186.3

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