ASTROSAT CZTI

Data Quality Report

Orbit 20240511_A13_080T01_9000006240_level2

Creation date: 2024-05-18T13:02:39.569075
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_080T01_9000006240cztM0_level2.fits modeM0/AS1A13_080T01_9000006240cztM0_level2_quad_clean.evt
Size (bytes)236,116,800371,269,440
Size225.2 MB 354.1 MB
Events in quadrant A1,314,9742,431,207
Events in quadrant B1,300,3442,294,224
Events in quadrant C1,349,7282,328,271
Events in quadrant D1,122,5022,132,988

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06100
B06100
C06100
D06100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01162000
B0950580
C0749430
D0997490

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2992626308.788345%
B29926387612.951948%
C2992720636.893441%
D29927300510.041100%

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 32256 28735 0 0 0.00% 0.00%
B 32256 29175 0 0 0.00% 0.00%
C 32257 29134 0 0 0.00% 0.00%
D 32257 28757 0 0 0.00% 0.00%

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 14 188 1587 14.13 344 323 89.4
A 14 204 1263 10.51 344 323 89.4
A 7 110 1064 8.29 344 323 89.4
B 2 9 1218 12.75 343 327 69.9
B 2 8 1039 10.19 343 327 69.9
B 3 17 961 9.07 343 327 69.9
C 3 202 1097 8.12 356 330 94.5
C 7 221 1082 7.96 356 330 94.5
C 1 81 1007 7.17 356 330 94.5
D 10 189 847 6.07 322 291 91.6
D 15 47 846 6.06 322 291 91.6
D 10 113 839 5.99 322 291 91.6

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