ASTROSAT CZTI

Data Quality Report

Orbit 04532

Creation date: 2024-06-27T14:43:24.545182
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_250T01_9000000568_04532cztM0_level2.evt modeM0/AS1G05_250T01_9000000568_04532cztM0_level2_quad_clean.evt
Size (bytes)270,092,16035,256,960
Size257.6 MB 33.6 MB
Events in quadrant A2,665,204154,120
Events in quadrant B1,706,478226,267
Events in quadrant C1,650,695225,704
Events in quadrant D1,915,910211,475

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02300813007
B0126655172
C0125795075
D0144186204

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012650
B012547
C012541
D012642

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A314655517.641449%
B3609912.521474%
C3632571.569383%
D3530952.691218%

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 7127 3609 136 136 1.91% 3.77%
B 7086 4226 0 0 0.00% 0.00%
C 7076 4199 0 0 0.00% 0.00%
D 6976 4108 29 29 0.42% 0.71%

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 13 1161390 15972.38 346 337 72.7
A 13 251 139319 1911.95 346 337 72.7
A 8 15 24945 338.53 346 337 72.7
B 7 252 15778 180.53 433 422 85.1
B 0 183 7952 88.52 433 422 85.1
B 12 111 7582 84.17 433 422 85.1
C 1 3 5793 54.41 420 421 98.7
C 13 61 3551 31.7 420 421 98.7
C 14 48 2884 24.95 420 421 98.7
D 1 20 126696 1211.0 401 390 104.3
D 13 235 75170 716.98 401 390 104.3
D 13 239 53912 513.16 401 390 104.3

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