ASTROSAT CZTI

Data Quality Report

Orbit 13560

Creation date: 2024-06-27T16:42:39.547585
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/AS1A04_180T01_9000002000_13560cztM0_level2.evt modeM0/AS1A04_180T01_9000002000_13560cztM0_level2_quad_clean.evt
Size (bytes)409,449,60081,072,000
Size390.5 MB 77.3 MB
Events in quadrant A2,860,227521,206
Events in quadrant B2,950,865526,205
Events in quadrant C3,062,037513,803
Events in quadrant D3,135,053490,678

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120672
B0123421
C0123391
D0131751

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5764751.301180%
B5764731.266482%
C5764500.867453%
D5764761.318529%

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 6950 5765 22 22 0.32% 0.38%
B 6950 5765 5 5 0.07% 0.09%
C 6950 5765 2 2 0.03% 0.03%
D 6950 5765 37 37 0.53% 0.64%

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 4 2 52086 345.32 727 714 148.8
A 1 162 9431 58.6 727 714 148.8
A 0 226 6681 40.11 727 714 148.8
B 3 64 45449 323.86 723 706 138.2
B 3 209 29589 209.06 723 706 138.2
B 12 111 14856 102.42 723 706 138.2
C 3 233 328535 2032.43 698 705 161.3
C 14 234 7272 40.71 698 705 161.3
C 13 61 5024 26.78 698 705 161.3
D 5 222 215387 1281.84 698 682 167.5
D 13 249 140623 835.48 698 682 167.5
D 12 110 64128 378.79 698 682 167.5

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