ASTROSAT CZTI

Data Quality Report

Orbit 05933

Creation date: 2024-06-27T15:00:58.149448
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/AS1G06_028T01_9000000768_05933cztM0_level2.evt modeM0/AS1G06_028T01_9000000768_05933cztM0_level2_quad_clean.evt
Size (bytes)490,227,84077,754,240
Size467.5 MB 74.2 MB
Events in quadrant A3,165,067483,470
Events in quadrant B3,661,842487,965
Events in quadrant C3,141,872477,520
Events in quadrant D4,426,155441,477

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137383
B0151382
C0136912
D0176942

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6651260.390919%
B6651570.857014%
C6651210.315742%
D66511972.961961%

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 7911 6652 3 3 0.04% 0.05%
B 7911 6652 12 12 0.15% 0.18%
C 7911 6652 1 1 0.01% 0.02%
D 7911 6652 130 130 1.64% 1.95%

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 15 234 36795 219.22 811 795 164.2
A 12 194 7769 42.47 811 795 164.2
A 0 226 7757 42.4 811 795 164.2
B 15 204 290161 1850.13 825 808 156.4
B 4 80 39306 246.16 825 808 156.4
B 15 255 35111 219.33 825 808 156.4
C 9 68 20393 106.53 797 805 183.9
C 1 16 10527 52.87 797 805 183.9
C 13 61 6206 29.37 797 805 183.9
D 2 63 715632 3754.58 780 759 190.4
D 1 20 337711 1769.71 780 759 190.4
D 2 152 284339 1489.39 780 759 190.4

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