ASTROSAT CZTI

Data Quality Report

Orbit 47629

Creation date: 2024-07-19T10:43:51.218318
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_071T01_9000006340_47629cztM0_level2.fits modeM0/AS1A13_071T01_9000006340_47629cztM0_level2_quad_clean.evt
Size (bytes)458,472,960102,058,560
Size437.2 MB 97.3 MB
Events in quadrant A7,394,938651,560
Events in quadrant B2,977,464703,577
Events in quadrant C3,142,177662,613
Events in quadrant D2,952,195619,682

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270301
B0132971
C0140261
D0134821

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64965328.189655%
B6496681.046798%
C64971091.677697%
D6497340.523318%

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 7261 6497 281 281 3.87% 4.33%
B 7261 6497 4 4 0.06% 0.06%
C 7262 6498 54 54 0.74% 0.83%
D 7262 6498 4 4 0.06% 0.06%

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 3483953 23564.65 705 689 147.8
A 13 248 850951 5752.11 705 689 147.8
A 9 191 258925 1746.99 705 689 147.8
B 0 190 48794 339.32 718 695 141.7
B 4 171 24255 166.21 718 695 141.7
B 12 111 18633 126.55 718 695 141.7
C 14 254 203947 1213.17 707 710 167.5
C 3 233 132528 786.86 707 710 167.5
C 12 249 30162 175.81 707 710 167.5
D 2 249 120989 680.23 712 691 176.8
D 13 171 33042 182.93 712 691 176.8
D 2 234 32683 180.9 712 691 176.8

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