ASTROSAT CZTI

Data Quality Report

Orbit 35730

Creation date: 2024-06-27T21:17:15.699897
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/AS1A09_029T05_9000005124_35730cztM0_level2.evt modeM0/AS1A09_029T05_9000005124_35730cztM0_level2_quad_clean.evt
Size (bytes)1,015,891,200153,996,480
Size968.8 MB 146.9 MB
Events in quadrant A6,605,847949,920
Events in quadrant B7,360,114952,461
Events in quadrant C8,069,850915,850
Events in quadrant D7,785,416879,953

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02860
B02860
C02860
D02860

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0284885
B0308573
C0329283
D0327593

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0430
B0430
C0430
D0430

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A13972130.093043%
B139721841.316920%
C139721891.352705%
D139723042.175780%

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 32072 13975 0 0 0.00% 0.00%
B 32072 13975 136 136 0.42% 0.97%
C 32072 13975 170 170 0.53% 1.22%
D 32072 13974 268 268 0.84% 1.92%

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 310112 963.3 1613 1587 320.3
A 13 6 41458 124.49 1613 1587 320.3
A 13 254 21221 61.3 1613 1587 320.3
B 5 172 704200 2322.03 1598 1554 302.6
B 15 85 97222 316.15 1598 1554 302.6
B 5 255 89889 291.92 1598 1554 302.6
C 0 207 691616 1950.15 1540 1550 353.9
C 15 214 577840 1628.62 1540 1550 353.9
C 0 10 354544 997.57 1540 1550 353.9
D 13 249 895874 2375.64 1541 1498 376.5
D 10 199 182006 479.47 1541 1498 376.5
D 1 52 159445 419.54 1541 1498 376.5

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