ASTROSAT CZTI

Data Quality Report

Orbit 06160

Creation date: 2024-06-27T15:03:34.983362
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/AS1A02_006T01_9000000802_06160cztM0_level2.evt modeM0/AS1A02_006T01_9000000802_06160cztM0_level2_quad_clean.evt
Size (bytes)709,830,720120,277,440
Size676.9 MB 114.7 MB
Events in quadrant A5,182,186727,573
Events in quadrant B5,457,258728,313
Events in quadrant C5,227,505719,858
Events in quadrant D4,879,615701,681

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0268543980
B0279164328
C0275074141
D0267794098

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A026640
B026640
C026632
D026646

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0196
B0195
C0191
D0191

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A110841531.380368%
B109972131.936892%
C110271641.487259%
D110291291.169644%

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 14937 11880 2 2 0.01% 0.02%
B 14937 11810 38 38 0.25% 0.32%
C 14937 11828 29 29 0.19% 0.25%
D 14937 11833 5 5 0.03% 0.04%

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 15 168451 640.88 1276 1246 260.9
A 13 251 56737 212.69 1276 1246 260.9
A 15 174 21912 79.21 1276 1246 260.9
B 3 64 403051 1626.61 1277 1243 247.0
B 0 219 33826 131.9 1277 1243 247.0
B 15 204 31709 123.33 1277 1243 247.0
C 12 16 139995 478.85 1248 1256 289.7
C 1 16 106036 361.65 1248 1256 289.7
C 7 159 59733 201.83 1248 1256 289.7
D 5 97 49698 159.51 1245 1205 304.0
D 8 195 39235 125.09 1245 1205 304.0
D 14 173 32804 103.94 1245 1205 304.0

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