ASTROSAT CZTI

Data Quality Report

Orbit 44033

Creation date: 2024-06-27T22:58:32.025701
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/AS1A13_023T03_9000005934_44033cztM0_level2.fits modeM0/AS1A13_023T03_9000005934_44033cztM0_level2_quad_clean.evt
Size (bytes)278,527,68053,835,840
Size265.6 MB 51.3 MB
Events in quadrant A2,119,925371,637
Events in quadrant B1,737,626387,066
Events in quadrant C1,818,097371,459
Events in quadrant D4,357,562249,330

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A086600
B075960
C079430
D0153460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3540190.536723%
B3540180.508475%
C3540210.593220%
D3541100928.494775%

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 3540 3540 0 0 0.00% 0.00%
B 3540 3540 3 3 0.08% 0.08%
C 3540 3540 15 15 0.42% 0.42%
D 3541 3540 797 797 22.51% 22.51%

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 10 83 551885 6524.77 397 389 84.5
A 14 238 23468 273.04 397 389 84.5
A 14 254 5620 61.88 397 389 84.5
B 0 213 72751 903.92 394 382 80.1
B 7 221 63528 788.72 394 382 80.1
B 4 171 36165 446.95 394 382 80.1
C 15 158 126993 1376.56 384 386 92.0
C 14 254 96015 1039.74 384 386 92.0
C 3 233 46180 497.9 384 386 92.0
D 5 235 1697207 20396.73 320 309 83.2
D 1 52 380607 4571.19 320 309 83.2
D 13 171 363808 4369.26 320 309 83.2

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