ASTROSAT CZTI

Data Quality Report

Orbit 46585

Creation date: 2024-06-27T23:25:05.626537
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_092T03_9000006234_46585cztM0_level2.fits modeM0/AS1A13_092T03_9000006234_46585cztM0_level2_quad_clean.evt
Size (bytes)958,763,520189,648,000
Size914.3 MB 180.9 MB
Events in quadrant A11,622,2711,257,396
Events in quadrant B6,839,7581,265,131
Events in quadrant C5,626,9051,272,492
Events in quadrant D10,447,6141,093,375

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0426803
B0289282
C0259172
D0396882

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02500
B02500
C02500
D02500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A123413032.455231%
B123424413.573165%
C12342880.713012%
D123429267.502836%

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 13766 12343 66 66 0.48% 0.53%
B 13767 12344 334 334 2.43% 2.71%
C 13767 12344 60 60 0.44% 0.49%
D 13767 12344 805 805 5.85% 6.52%

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 6202632 22227.76 1340 1310 279.0
A 0 247 50771 177.29 1340 1310 279.0
A 0 243 45882 159.76 1340 1310 279.0
B 4 158 789562 3021.03 1328 1288 260.9
B 0 189 142742 542.12 1328 1288 260.9
B 15 201 125896 477.56 1328 1288 260.9
C 14 254 346021 1100.4 1328 1334 313.2
C 12 249 24269 73.22 1328 1334 313.2
C 3 233 24242 73.13 1328 1334 313.2
D 13 138 1256304 3822.59 1293 1250 328.3
D 2 37 933561 2839.59 1293 1250 328.3
D 1 52 845962 2572.78 1293 1250 328.3

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