ASTROSAT CZTI

Data Quality Report

Orbit 03468

Creation date: 2024-06-27T14:29:47.776175
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/AS1G05_245T01_9000000460_03468cztM0_level2.evt modeM0/AS1G05_245T01_9000000460_03468cztM0_level2_quad_clean.evt
Size (bytes)137,937,60018,270,720
Size131.5 MB 17.4 MB
Events in quadrant A1,038,040101,422
Events in quadrant B1,097,065103,141
Events in quadrant C957,281102,724
Events in quadrant D944,94598,307

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A043122
B044661
C041781
D042221

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2016663.273810%
B2016582.876984%
C2016472.331349%
D2016492.430556%

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 2871 2016 6 6 0.21% 0.30%
B 2871 2016 2 2 0.07% 0.10%
C 2871 2016 0 0 0.00% 0.00%
D 2871 2016 3 3 0.10% 0.15%

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 0 118 30257 553.3 253 247 54.2
A 8 15 19586 356.56 253 247 54.2
A 14 111 6531 115.86 253 247 54.2
B 15 204 87194 1671.53 256 250 52.0
B 0 229 6561 121.33 256 250 52.0
B 12 111 3643 65.23 256 250 52.0
C 1 192 4410 71.65 242 243 58.2
C 15 208 3420 54.63 242 243 58.2
C 12 175 2154 32.86 242 243 58.2
D 13 223 11065 179.68 242 235 60.3
D 5 233 8726 140.88 242 235 60.3
D 2 37 4963 78.44 242 235 60.3

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