ASTROSAT CZTI

Data Quality Report

Orbit 47459

Creation date: 2024-07-07T22:24:32.112598
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_089T01_9000006330_47459cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47459cztM0_level2_quad_clean.evt
Size (bytes)630,584,640106,848,000
Size601.4 MB 101.9 MB
Events in quadrant A7,469,372701,660
Events in quadrant B4,467,526726,687
Events in quadrant C2,926,242734,149
Events in quadrant D7,984,501626,217

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0265252
B0177712
C0132172
D0282282

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63984937.705533%
B63994637.235506%
C6399300.468823%
D639967210.501641%

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 7573 6399 163 163 2.15% 2.55%
B 7574 6400 222 222 2.93% 3.47%
C 7574 6400 3 3 0.04% 0.05%
D 7574 6400 689 689 9.10% 10.77%

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 4109302 26938.13 736 720 152.5
A 9 191 373263 2442.6 736 720 152.5
A 14 235 56047 362.75 736 720 152.5
B 5 32 1199921 8373.98 731 711 143.2
B 0 198 135243 939.43 731 711 143.2
B 5 255 38383 263.06 731 711 143.2
C 3 233 10849 58.15 741 744 173.8
C 12 2 10367 55.38 741 744 173.8
C 0 207 7829 40.77 741 744 173.8
D 6 112 3244731 17969.32 720 697 180.5
D 2 165 803818 4448.64 720 697 180.5
D 2 249 577741 3196.36 720 697 180.5

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