ASTROSAT CZTI

Data Quality Report

Orbit 46465

Creation date: 2024-11-13T05:47:36.968523
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/AS1T05_203T01_9000006214_46465cztM0_level2.fits modeM0/AS1T05_203T01_9000006214_46465cztM0_level2_quad_clean.evt
Size (bytes)199,693,44038,678,400
Size190.4 MB 36.9 MB
Events in quadrant A2,306,053259,104
Events in quadrant B1,218,364270,315
Events in quadrant C1,153,932258,584
Events in quadrant D2,528,089212,942

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A086053
B051690
C050750
D092370

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2364632.664975%
B2364220.930626%
C236480.338409%
D236430813.028765%

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 2364 2364 6 6 0.25% 0.25%
B 2364 2364 4 4 0.17% 0.17%
C 2364 2364 4 4 0.17% 0.17%
D 2364 2364 240 240 10.15% 10.15%

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 1065818 16730.06 293 286 63.7
A 0 247 65309 1020.94 293 286 63.7
A 9 191 22795 353.42 293 286 63.7
B 5 172 39264 651.41 289 280 59.8
B 0 245 8367 135.13 289 280 59.8
B 0 183 7866 126.76 289 280 59.8
C 12 2 34140 486.15 285 286 69.6
C 3 233 5389 73.28 285 286 69.6
C 13 61 1994 24.53 285 286 69.6
D 1 52 671218 9209.29 278 268 72.9
D 12 233 372669 5111.48 278 268 72.9
D 13 249 167573 2296.39 278 268 72.9

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