ASTROSAT CZTI

Data Quality Report

Orbit 17383

Creation date: 2024-06-27T17:35:54.267863
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/AS1A05_225T02_9000002570_17383cztM0_level2.evt modeM0/AS1A05_225T02_9000002570_17383cztM0_level2_quad_clean.evt
Size (bytes)239,564,16049,654,080
Size228.5 MB 47.4 MB
Events in quadrant A1,459,002343,770
Events in quadrant B1,475,466340,946
Events in quadrant C1,461,890320,008
Events in quadrant D2,667,695299,160

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060540
B061280
C060030
D098750

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A278970.250986%
B279040.143369%
C279080.286738%
D279028510.215054%

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 2789 2789 0 0 0.00% 0.00%
B 2790 2790 1 1 0.04% 0.04%
C 2790 2790 0 0 0.00% 0.00%
D 2790 2790 253 253 9.07% 9.07%

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 0 226 3392 40.25 379 372 75.0
A 12 194 2786 32.18 379 372 75.0
A 3 137 2400 27.03 379 372 75.0
B 4 216 14483 202.82 370 362 69.6
B 0 189 11470 159.54 370 362 69.6
B 12 111 7126 97.15 370 362 69.6
C 14 238 58378 703.77 357 360 82.4
C 3 233 7413 85.55 357 360 82.4
C 13 61 2558 26.66 357 360 82.4
D 11 176 1145358 13176.36 355 346 86.9
D 10 70 67148 768.73 355 346 86.9
D 13 189 39969 455.97 355 346 86.9

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