ASTROSAT CZTI

Data Quality Report

Orbit 14584

Creation date: 2024-06-27T16:57:09.762513
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/AS1G08_055T02_9000002148_14584cztM0_level2.evt modeM0/AS1G08_055T02_9000002148_14584cztM0_level2_quad_clean.evt
Size (bytes)240,235,20025,732,800
Size229.1 MB 24.5 MB
Events in quadrant A2,128,137145,820
Events in quadrant B1,409,325149,242
Events in quadrant C1,711,795144,510
Events in quadrant D1,841,320145,512

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A082442
B057741
C071381
D073321

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2711883.246035%
B2711572.102545%
C2711562.065658%
D2711592.176319%

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 3552 2712 2 2 0.06% 0.07%
B 3552 2712 0 0 0.00% 0.00%
C 3552 2712 0 0 0.00% 0.00%
D 3552 2712 6 6 0.17% 0.22%

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 23 703983 9701.06 348 339 72.5
A 0 226 44763 612.47 348 339 72.5
A 12 189 23792 323.34 348 339 72.5
B 0 229 14999 212.52 348 338 69.0
B 0 189 9615 134.48 348 338 69.0
B 12 111 8317 115.66 348 338 69.0
C 3 233 403437 5099.33 335 337 79.0
C 13 61 2385 25.91 335 337 79.0
C 3 232 1817 18.72 335 337 79.0
D 12 110 538489 6515.61 336 325 82.6
D 2 152 9668 113.12 336 325 82.6
D 2 234 9432 110.26 336 325 82.6

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