ASTROSAT CZTI

Data Quality Report

Orbit 10575

Creation date: 2024-06-27T16:01:00.516050
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/AS1G07_046T01_9000001534_10575cztM0_level2.evt modeM0/AS1G07_046T01_9000001534_10575cztM0_level2_quad_clean.evt
Size (bytes)496,805,76081,803,520
Size473.8 MB 78.0 MB
Events in quadrant A2,934,020530,266
Events in quadrant B4,957,338492,581
Events in quadrant C2,775,579527,216
Events in quadrant D3,960,388496,276

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128142
B0187551
C0125721
D0159411

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6170500.810373%
B617073611.928687%
C6170320.518639%
D6170751.215559%

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 7115 6171 0 0 0.00% 0.00%
B 7115 6171 551 551 7.74% 8.93%
C 7115 6171 1 1 0.01% 0.02%
D 7115 6171 35 35 0.49% 0.57%

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 75583 500.42 727 711 149.6
A 1 162 33381 218.36 727 711 149.6
A 11 29 6986 41.94 727 711 149.6
B 4 239 2098482 15557.32 694 674 134.8
B 0 219 53520 391.9 694 674 134.8
B 0 214 33783 245.53 694 674 134.8
C 4 175 18696 109.45 704 710 164.3
C 14 234 7864 43.53 704 710 164.3
C 13 61 5142 26.97 704 710 164.3
D 2 16 697856 4115.91 701 681 169.4
D 8 195 454854 2681.3 701 681 169.4
D 1 52 71260 416.68 701 681 169.4

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