ASTROSAT CZTI

Data Quality Report

Orbit 03778

Creation date: 2024-06-27T14:33:33.302371
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_248T01_9000000486_03778cztM0_level2.evt modeM0/AS1G05_248T01_9000000486_03778cztM0_level2_quad_clean.evt
Size (bytes)565,580,16078,223,680
Size539.4 MB 74.6 MB
Events in quadrant A4,172,569484,843
Events in quadrant B4,669,697486,348
Events in quadrant C3,138,099484,670
Events in quadrant D4,712,136463,428

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
A0164313
B0179762
C0134912
D0183222

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64413445.340786%
B64413445.340786%
C6441891.381773%
D64412584.005589%

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 7671 6441 189 189 2.46% 2.93%
B 7671 6441 139 139 1.81% 2.16%
C 7671 6441 4 4 0.05% 0.06%
D 7671 6441 161 161 2.10% 2.50%

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 13 251 458220 2817.5 803 786 162.4
A 0 118 235343 1444.72 803 786 162.4
A 13 164 166414 1020.16 803 786 162.4
B 0 173 1246889 8009.94 808 790 155.6
B 15 204 133652 854.04 808 790 155.6
B 0 244 52190 330.4 808 790 155.6
C 2 53 76821 421.92 778 783 180.2
C 1 16 14119 74.0 778 783 180.2
C 13 61 6667 32.65 778 783 180.2
D 1 84 980364 5346.68 770 746 183.2
D 8 112 588706 3209.04 770 746 183.2
D 13 137 81579 441.18 770 746 183.2

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
Veto Counter