ASTROSAT CZTI

Data Quality Report

Orbit 07285

Creation date: 2024-06-27T15:18:06.848216
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/AS1G06_154T04_9000000998_07285cztM0_level2.evt modeM0/AS1G06_154T04_9000000998_07285cztM0_level2_quad_clean.evt
Size (bytes)212,898,24047,813,760
Size203.0 MB 45.6 MB
Events in quadrant A1,528,553306,486
Events in quadrant B1,533,927315,441
Events in quadrant C1,515,371311,646
Events in quadrant D1,658,592295,009

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066401
B065900
C066510
D071060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A30721745.664062%
B30721685.468750%
C30721203.906250%
D30721464.752604%

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 3072 3072 0 0 0.00% 0.00%
B 3072 3072 0 0 0.00% 0.00%
C 3072 3072 0 0 0.00% 0.00%
D 3072 3072 14 14 0.46% 0.46%

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 13 248 16103 188.37 392 381 83.5
A 0 226 3657 39.25 392 381 83.5
A 12 194 3463 36.93 392 381 83.5
B 12 111 8748 104.89 393 382 79.8
B 11 111 6900 81.72 393 382 79.8
B 0 214 5212 60.56 393 382 79.8
C 1 16 12770 134.49 383 383 92.1
C 9 68 5522 55.79 383 383 92.1
C 13 61 2965 28.03 383 383 92.1
D 2 216 139677 1461.56 379 366 95.3
D 2 14 74359 776.29 379 366 95.3
D 1 52 12417 126.43 379 366 95.3

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