ASTROSAT CZTI

Data Quality Report

Orbit 14367

Creation date: 2024-06-27T16:54:20.611723
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/AS1T02_046T01_9000002116_14367cztM0_level2.evt modeM0/AS1T02_046T01_9000002116_14367cztM0_level2_quad_clean.evt
Size (bytes)478,802,88082,840,320
Size456.6 MB 79.0 MB
Events in quadrant A3,059,795528,462
Events in quadrant B3,589,721526,093
Events in quadrant C3,479,810508,562
Events in quadrant D3,935,962498,309

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131772
B0148051
C0139611
D0160501

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6416390.607855%
B64161261.963840%
C6416280.436409%
D64163164.925187%

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 7337 6418 3 3 0.04% 0.05%
B 7337 6417 55 55 0.75% 0.86%
C 7337 6417 2 2 0.03% 0.03%
D 7337 6417 250 250 3.41% 3.90%

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 12 189 44203 272.68 776 759 159.3
A 15 69 17031 102.13 776 759 159.3
A 8 15 8193 46.66 776 759 159.3
B 0 182 207063 1381.9 769 751 149.3
B 0 229 199700 1332.58 769 751 149.3
B 0 245 48700 321.17 769 751 149.3
C 3 233 551022 3143.89 747 751 175.0
C 10 22 10641 56.5 747 751 175.0
C 13 61 5316 26.08 747 751 175.0
D 1 52 815404 4672.62 728 711 174.4
D 2 120 185843 1061.81 728 711 174.4
D 10 172 57818 327.53 728 711 174.4

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