ASTROSAT CZTI

Data Quality Report

Orbit 44247

Creation date: 2024-06-27T23:00:58.139460
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_079T01_9000005978_44247cztM0_level2.fits modeM0/AS1A13_079T01_9000005978_44247cztM0_level2_quad_clean.evt
Size (bytes)913,135,68090,008,640
Size870.8 MB 85.8 MB
Events in quadrant A17,685,76383,199
Events in quadrant B3,599,554822,007
Events in quadrant C3,486,272772,231
Events in quadrant D8,450,130528,518

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0576420
B0158850
C0158570
D0303280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7462677290.753149%
B7462190.254623%
C7462290.388636%
D7462233531.291879%

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 7461 7461 6019 6019 80.67% 80.67%
B 7462 7462 1 1 0.01% 0.01%
C 7462 7462 18 18 0.24% 0.24%
D 7462 7462 1146 1146 15.36% 15.36%

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 15 223 16044273 265101.64 285 279 60.5
A 10 83 502706 8301.81 285 279 60.5
A 10 248 27398 448.1 285 279 60.5
B 4 173 193456 1188.88 814 786 162.1
B 4 158 81331 497.01 814 786 162.1
B 0 155 25390 151.82 814 786 162.1
C 14 254 297092 1570.53 797 800 188.7
C 14 220 45082 234.72 797 800 188.7
C 3 233 21099 107.6 797 800 188.7
D 4 221 4847188 28181.99 680 660 172.0
D 13 249 640328 3719.59 680 660 172.0
D 5 222 100796 582.28 680 660 172.0

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