ASTROSAT CZTI

Data Quality Report

Orbit 10952

Creation date: 2024-06-27T16:06:09.241339
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/AS1G08_037T01_9000001588_10952cztM0_level2.evt modeM0/AS1G08_037T01_9000001588_10952cztM0_level2_quad_clean.evt
Size (bytes)572,103,36062,087,040
Size545.6 MB 59.2 MB
Events in quadrant A4,190,374362,136
Events in quadrant B4,574,936366,428
Events in quadrant C3,033,399368,094
Events in quadrant D5,081,289323,937

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166513
B0177642
C0134782
D0193662

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65782033.086044%
B65784797.281849%
C6578500.760109%
D657868810.459106%

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 7608 6578 104 104 1.37% 1.58%
B 7608 6578 248 248 3.26% 3.77%
C 7608 6578 2 2 0.03% 0.03%
D 7608 6578 551 551 7.24% 8.38%

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 5 835535 5192.05 792 777 160.8
A 8 15 231555 1435.4 792 777 160.8
A 15 223 35217 214.21 792 777 160.8
B 4 239 1332275 8885.35 788 769 149.9
B 3 189 70463 465.08 788 769 149.9
B 0 214 34855 227.46 788 769 149.9
C 12 4 8289 41.68 776 780 180.1
C 13 61 5730 27.48 776 780 180.1
C 5 207 2246 8.14 776 780 180.1
D 1 52 990128 5664.9 723 703 174.7
D 10 253 945653 5410.26 723 703 174.7
D 13 249 131884 751.07 723 703 174.7

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