ASTROSAT CZTI

Data Quality Report

Orbit 28945

Creation date: 2024-06-27T19:58:21.427460
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/AS1A10_082T04_9000004150_28945cztM0_level2.evt modeM0/AS1A10_082T04_9000004150_28945cztM0_level2_quad_clean.evt
Size (bytes)236,116,80022,086,720
Size225.2 MB 21.1 MB
Events in quadrant A1,183,894123,499
Events in quadrant B1,203,347125,127
Events in quadrant C1,255,192122,671
Events in quadrant D3,331,726112,108

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051930
B052150
C052760
D0116410

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A257330.116595%
B257300.000000%
C2573250.971628%
D257345717.761368%

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 2573 2573 0 0 0.00% 0.00%
B 2573 2573 0 0 0.00% 0.00%
C 2573 2573 0 0 0.00% 0.00%
D 2573 2573 542 542 21.06% 21.06%

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 4792 70.53 306 300 63.7
A 3 137 3035 42.94 306 300 63.7
A 0 226 2590 35.95 306 300 63.7
B 12 111 6989 114.45 303 296 58.5
B 11 111 6364 103.77 303 296 58.5
B 14 111 5469 88.46 303 296 58.5
C 14 238 55972 793.1 297 299 70.2
C 3 233 20420 286.64 297 299 70.2
C 14 254 10686 147.97 297 299 70.2
D 8 195 1928302 27018.67 287 279 71.4
D 1 52 280248 3923.39 287 279 71.4
D 12 233 14499 199.27 287 279 71.4

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