ASTROSAT CZTI

Data Quality Report

Orbit 20190108_T03_070T04_9000002638_level2

Creation date: 2024-11-14T16:10:41.469057
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/AS1T03_070T04_9000002638cztM0_level2.fits modeM0/AS1T03_070T04_9000002638cztM0_level2_quad_clean.evt
Size (bytes)145,103,04070,848,000
Size138.4 MB 67.6 MB
Events in quadrant A888,214298,957
Events in quadrant B876,522305,804
Events in quadrant C883,224288,620
Events in quadrant D761,776265,511

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02900
B02900
C02900
D02900

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0348190
B0318170
C0302140
D0342550

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A142725023.517377%
B142722091.464406%
C142721290.903868%
D142721671.170123%

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 18187 14272 0 0 0.00% 0.00%
B 18187 14272 0 0 0.00% 0.00%
C 18187 14272 0 0 0.00% 0.00%
D 18187 14272 0 0 0.00% 0.00%

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 0 29 832 10.36 231 218 59.2
A 7 110 736 8.74 231 218 59.2
A 15 236 691 7.98 231 218 59.2
B 2 9 700 10.19 231 222 46.9
B 5 128 579 7.61 231 222 46.9
B 2 8 578 7.59 231 222 46.9
C 1 81 658 7.07 233 219 62.1
C 2 191 623 6.5 233 219 62.1
C 3 126 618 6.42 233 219 62.1
D 3 14 570 6.25 217 199 59.4
D 10 189 550 5.91 217 199 59.4
D 6 83 535 5.66 217 199 59.4

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