ASTROSAT CZTI

Data Quality Report

Orbit 09398

Creation date: 2024-06-27T15:45:32.290191
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_069T01_9000001332_09398cztM0_level2.evt modeM0/AS1G07_069T01_9000001332_09398cztM0_level2_quad_clean.evt
Size (bytes)117,938,88026,928,000
Size112.5 MB 25.7 MB
Events in quadrant A811,162178,523
Events in quadrant B720,611180,318
Events in quadrant C702,118183,181
Events in quadrant D1,240,083168,798

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340015
B0305326
C0298719
D0468751

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1400151.071429%
B1395130.931900%
C1399100.714796%
D13921178.405172%

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 1881 1407 4 4 0.21% 0.28%
B 1881 1407 0 0 0.00% 0.00%
C 1881 1406 0 0 0.00% 0.00%
D 1881 1407 105 105 5.58% 7.46%

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 105871 2720.09 177 172 38.9
A 14 111 15352 390.65 177 172 38.9
A 1 162 3973 97.82 177 172 38.9
B 0 214 12504 338.17 179 174 36.5
B 4 173 4753 125.59 179 174 36.5
B 8 234 4051 106.33 179 174 36.5
C 13 61 1302 25.44 179 180 44.1
C 7 159 610 9.75 179 180 44.1
C 3 202 458 6.3 179 180 44.1
D 1 52 505004 10650.69 171 167 47.4
D 7 71 22491 470.98 171 167 47.4
D 13 104 20261 423.93 171 167 47.4

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