ASTROSAT CZTI

Data Quality Report

Orbit 03983

Creation date: 2024-06-27T14:35:58.711648
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/AS1G05_247T01_9000000512_03983cztM0_level2.evt modeM0/AS1G05_247T01_9000000512_03983cztM0_level2_quad_clean.evt
Size (bytes)480,018,240116,936,640
Size457.8 MB 111.5 MB
Events in quadrant A3,602,740761,069
Events in quadrant B3,562,479767,939
Events in quadrant C3,229,428764,331
Events in quadrant D3,641,456735,083

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159743
B0155212
C0150062
D0162672

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73721011.370049%
B7372751.017363%
C7372470.637547%
D73721291.749864%

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 9272 7374 23 23 0.25% 0.31%
B 9272 7374 6 6 0.06% 0.08%
C 9272 7374 1 1 0.01% 0.01%
D 9272 7374 52 52 0.56% 0.71%

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 0 50 242829 1435.39 830 811 168.6
A 3 1 65910 386.1 830 811 168.6
A 12 247 37464 217.39 830 811 168.6
B 14 167 109273 678.49 843 818 159.8
B 15 204 61150 377.44 843 818 159.8
B 3 0 44808 275.2 843 818 159.8
C 10 65 14601 72.78 820 821 189.3
C 9 144 12647 62.46 820 821 189.3
C 13 61 6846 31.82 820 821 189.3
D 10 246 406667 2108.02 806 781 192.5
D 13 239 69519 357.0 806 781 192.5
D 2 63 48971 250.28 806 781 192.5

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