ASTROSAT CZTI

Data Quality Report

Orbit 30570

Creation date: 2024-06-27T20:17:07.309306
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/AS1A10_053T23_9000004404_30570cztM0_level2.evt modeM0/AS1A10_053T23_9000004404_30570cztM0_level2_quad_clean.evt
Size (bytes)554,901,120105,287,040
Size529.2 MB 100.4 MB
Events in quadrant A3,476,947714,763
Events in quadrant B5,566,779689,603
Events in quadrant C3,645,561665,955
Events in quadrant D3,683,699673,082

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141451
B0209791
C0147411
D0148791

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6379460.721116%
B63793705.800282%
C63791662.602289%
D6379350.548675%

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 7699 6380 4 4 0.05% 0.06%
B 7699 6380 207 207 2.69% 3.24%
C 7699 6380 28 28 0.36% 0.44%
D 7699 6380 9 9 0.12% 0.14%

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 8 192 14834 78.91 895 882 176.8
A 13 254 11598 60.61 895 882 176.8
A 13 210 11259 58.69 895 882 176.8
B 6 159 1632498 10267.44 854 836 158.9
B 6 36 561307 3526.83 854 836 158.9
B 12 111 18881 113.55 854 836 158.9
C 14 238 140269 720.54 833 840 193.5
C 0 10 116135 595.82 833 840 193.5
C 10 22 74938 382.92 833 840 193.5
D 8 195 179363 888.78 865 846 200.9
D 5 222 86183 424.87 865 846 200.9
D 2 250 70789 348.23 865 846 200.9

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