ASTROSAT CZTI

Data Quality Report

Orbit 47633

Creation date: 2024-07-19T15:51:04.853764
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/AS1A13_071T01_9000006340_47633cztM0_level2.fits modeM0/AS1A13_071T01_9000006340_47633cztM0_level2_quad_clean.evt
Size (bytes)464,829,120108,408,960
Size443.3 MB 103.4 MB
Events in quadrant A7,001,074715,842
Events in quadrant B3,083,144746,817
Events in quadrant C3,089,032717,485
Events in quadrant D3,537,441656,780

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259443
B0133811
C0137211
D0148981

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63873846.012212%
B63871131.769219%
C63871021.596994%
D63872143.350556%

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 7487 6388 118 118 1.58% 1.85%
B 7487 6388 8 8 0.11% 0.13%
C 7487 6388 14 14 0.19% 0.22%
D 7487 6388 84 84 1.12% 1.31%

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 10 83 3485336 22621.9 742 727 154.0
A 9 191 371946 2409.93 742 727 154.0
A 13 248 258293 1672.11 742 727 154.0
B 5 29 34916 236.66 739 716 144.5
B 0 186 33773 228.75 739 716 144.5
B 5 171 30179 203.88 739 716 144.5
C 14 254 159495 918.26 732 734 172.9
C 1 3 60155 343.68 732 734 172.9
C 12 2 9647 51.55 732 734 172.9
D 2 249 348682 1886.5 741 719 184.4
D 2 165 214852 1160.93 741 719 184.4
D 2 234 29497 156.02 741 719 184.4

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