ASTROSAT CZTI

Data Quality Report

Orbit 26417

Creation date: 2024-06-27T19:28:45.153289
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/AS1A09_127T02_9000003818_26417cztM0_level2.evt modeM0/AS1A09_127T02_9000003818_26417cztM0_level2_quad_clean.evt
Size (bytes)106,937,28028,915,200
Size102.0 MB 27.6 MB
Events in quadrant A642,072200,890
Events in quadrant B714,524211,130
Events in quadrant C724,992195,521
Events in quadrant D1,075,676180,124

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A026100
B028790
C029390
D040460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A115920.172563%
B115930.258844%
C1159403.451251%
D1159998.541846%

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 1159 1159 0 0 0.00% 0.00%
B 1159 1159 1 1 0.09% 0.09%
C 1159 1159 13 13 1.12% 1.12%
D 1159 1159 79 79 6.82% 6.82%

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 13 254 2237 59.87 165 162 34.7
A 15 192 2028 53.84 165 162 34.7
A 0 226 1444 36.99 165 162 34.7
B 0 244 32330 990.03 170 167 32.5
B 4 52 4873 144.86 170 167 32.5
B 0 219 3391 99.24 170 167 32.5
C 14 238 25995 655.87 163 165 39.4
C 0 207 25890 653.21 163 165 39.4
C 0 10 16448 413.46 163 165 39.4
D 1 52 298496 7813.01 156 152 38.2
D 12 233 75928 1984.42 156 152 38.2
D 12 227 64885 1695.22 156 152 38.2

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