ASTROSAT CZTI

Data Quality Report

Orbit 46363

Creation date: 2024-06-27T23:22:15.290821
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_068T02_9000006200_46363cztM0_level2.fits modeM0/AS1A13_068T02_9000006200_46363cztM0_level2_quad_clean.evt
Size (bytes)466,009,92090,792,000
Size444.4 MB 86.6 MB
Events in quadrant A5,617,791597,427
Events in quadrant B3,322,610624,197
Events in quadrant C4,484,046579,455
Events in quadrant D3,381,207547,027

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0204820
B0138010
C0173740
D0142050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57322614.553385%
B5732971.692254%
C57323796.612003%
D57321632.843685%

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 5732 5732 156 156 2.72% 2.72%
B 5732 5732 42 42 0.73% 0.73%
C 5732 5732 303 303 5.29% 5.29%
D 5732 5732 118 118 2.06% 2.06%

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 2443026 18000.41 639 626 135.7
A 13 248 604689 4451.93 639 626 135.7
A 14 235 32307 233.49 639 626 135.7
B 5 172 189475 1463.35 642 623 129.1
B 0 189 170527 1316.53 642 623 129.1
B 0 190 94429 726.87 642 623 129.1
C 14 254 1402092 9515.42 620 623 147.3
C 4 254 606549 4114.0 620 623 147.3
C 3 233 27248 180.77 620 623 147.3
D 1 52 447583 2832.51 628 608 157.8
D 0 240 179622 1134.42 628 608 157.8
D 2 249 91790 577.83 628 608 157.8

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